Q JEE MAIN 2026

In two separate Young's double-slit experimental set-ups and two monochromatic light sources of different wavelengths are used to get fringes...

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Q JEE MAIN 2026

Given below are two statements: Statement I : A plane wave after passing through prism remains as plane wave but...

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Q JEE MAIN 2026

In the Young's double slit experiment the intensity produced by each one of the individual slits is $I_{\mathrm{o}}$. The distance...

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Q JEE MAIN 2026

A point source is kept at the center of a spherically enclosed detector. If the volume of the detector increased...

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Q JEE MAIN 2026

An unpolarised light is incident at an interface of two dielectric media having refractive indices of 2 (incident medium) and...

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Q JEE MAIN 2026

When an unpolarized light falls at a particular angle on a glass plate (placed in air), it is observed that...

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Q JEE MAIN 2026

Which of the following are true for a single slit diffraction ? A. Width of central maxima increases with increase...

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Q JEE MAIN 2026

Two strings $(A, B)$ having linear densities $\mu_A=2 \times 10^{-4} \mathrm{~kg} / \mathrm{m}$ and, $\mu_B=4 \times 10^{-4} \mathrm{~kg} / \mathrm{m}$...

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Q JEE MAIN 2026

In a Young's double slit experiment set up, the two slits are kept 0.4 mm apart and screen is placed...

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Q JEE MAIN 2026

Given below are two statements : Statement I: In a Young's double slit experiment, the angular separation of fringes will...

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Q JEE MAIN 2020

Interference fringes are observed on a screen by illuminating two thin slits 1 mm apart with a light source (...

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Q JEE MAIN 2020

In a Young’s double slit experiment, 16 fringes are observed in a certain segment of the screen when light of...

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Q JEE MAIN 2019

In a double slit experiment, when a thin film of thickness $t$ having refractive index $\mu$ is introduced in front...

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Q JEE MAIN 2019

The value of numerical aperture of the objective lens of a microscope is 1.25. If light of wavelength 5000 Å...

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Q JEE MAIN 2020

A beam of electrons of energy $E$ scatters from a target having atomic spacing of $1 \AA$. The first maximum...

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Q JEE MAIN 2029

In a Young's double slit experiment, the slits are placed 0.320 mm apart. Light of wavelength $\lambda=500 \mathrm{~nm}$ is incident...

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Q JEE MAIN 2019

A system of three polarizers $P_1, P_2, P_3$ is set up such that the pass axis of $P 3$ is...

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Q JEE MAIN 2020

In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m ....

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Q JEE MAIN 2020

A Young's double-slit experiment is performed using monochromatic light of wavelength $\lambda$. The intensity of light at a point on...

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Q JEE MAIN 2020

The aperture diameter of a telescope is 5 m . The separation between the moon and the earth is $...

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Q JEE MAIN 2019

In a Young's double slit experiment, the path difference, at a certain point on the screen, between two interfering waves...

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Q JEE-MAIN 2020

Two coherent sources of sound, $S_1$ and $S_2$, produce sound waves of the same wavelength, $\lambda=1 \mathrm{~m}$, in phase. $S_1$...

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Q JEE MAIN 2019

In a Young’s double slit experiment, the ratio of the slit’s width is 4 : 1. The ratio of the...

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Q JEE Main 2019

In a Young's double slit experiment with slit separation 0.1 mm , one observes a bright fringe at angle $\frac{1}{40}$...

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Q JEE MAIN 2020

A beam of plane polarised light of large crosssectional area and uniform intensity of 3.3 $\mathrm{Wm}^{-2}$ falls normally on a...

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Q JEE MAIN 2020

Orange light of wavelength $6000 \times 10^{-10} \mathrm{~m}$ illuminates a single slit of width $0.6 \times 10^{-4} \mathrm{~m}$. The maximum...

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Q JEE MAIN 2020

In a Young's double slit experiment 15 fringes are observed on a small portion of the screen when light of...

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Q JEE MAIN 2019

In a double-slit experiment, green light $(5303 \AA)$ falls on a double slit having a separation of $19.44 \mu \mathrm{~m}$...

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Q JEE-MAIN 2020

Two light waves having the same wavelength $\lambda$ in vacuum are in phase initially. Then the first wave travels a...

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Q JEE MAIN 2020

In a double-slit experiment, at a certain point on the screen the path difference between the two interfering waves is...

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Q JEE MAIN 2019

In a Young's double slit experiment, the slits are placed 0.320 mm apart. Light of wavelength $\lambda=500 \mathrm{~nm}$ is incident...

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Q JEE MAIN 2019

Diameter of the objective lens of a telescope is 250 cm. For light of wavelength 600 nm. coming from a...

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Q JEE MAIN 2020

A polarizer-analyser set is adjusted such that the intensity of light coming out of the analyser is just $10 \%$...

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Q JEE MAIN 2020

Visible light of wavelength $6000 \times 10^{-8} \mathrm{~cm}$ falls normally on a single slit and produces a diffraction pattern. It...

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Q JEE MAIN 2021

In a Young's double slit experiment, the slits are separated by 0.3 mm and the screen is 1.5 m away...

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Q JEE MAIN 2019

Consider a Young's double slit experiment as shown in figure. What should be the slit separation $d$ in terms wavelength...

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Q JEE MAIN 2021

In a Young's double slit experiment, the slits are separated by 0.3 mm and the screen is 1.5 m away...

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Q JEE MAIN 2021

The light waves from two coherent sources have same intensity $l_1=l_2=l_0$. In interference pattern the intensity of light at minima...

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Q JEE MAIN 2019

In an interference experiment the ratio of amplitudes of coherent waves is $\frac{a_1}{a_2}=\frac{1}{3}$. The ratio of maximum and minimum intensities...

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Q JEE MAIN 2021

White light is passed through a double slit and interference is observed on a screen 1.5 m away. The separation...

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Q JEE MAIN 2021

Two travelling waves produces a standing wave represented by equation, $\mathrm{y}=1.0 \mathrm{~mm} \cos \left(1.57 \mathrm{~cm}^{-1}\right) \times \sin \left(78.5 \mathrm{~s}^{-1}\right) \mathrm{t}$....

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Q JEE-MAIN 2021

A source of light is placed in front of a screen. Intensity of light on the screen is $I$. Two...

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Q JEE MAIN 2021

Two waves are simultaneously passing through a string and their equations are $y_1=A_1 \sin k(x-v t), y_2=A_2 \sin k\left(x-v t+x_0\right)$....

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Q JEE MAIN 2021

The difference in the number of waves when yellow light propagates through air vacuum columns of the same thickness is...

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Q JEE-MAIN 2021

oportional to the slit-width, the ratio of minimum to maximum intensity in the interference pattern is x : 4 where...

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Q JEE-MAIN 2021

A linearly polarized electromagnetic wave in vacuum is $\mathrm{E}=3.1 \cos \left[(1.8) \mathrm{z}-\left(5.4 \times 10^6\right) \mathrm{t}\right] \hat{\mathrm{iN}} / \mathrm{C}$ is incident...

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Q JEE MAIN 2021

In the Young's double slit experiment, the distance between the slits varies in time as $d(t)=d_0+a_0 \sin \omega t$; where...

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Q JEE MAIN 2021

In Young’s double slit experiment, if the source of light changes from orange to blue then :

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Q JEE MAIN 2019

Calculate the limit of resolution of a telescope objective having a diameter of 200 cm , if it has to...

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Q JEE MAIN 2021

Proportional to the slit-width, the ratio of minimum to maximum intensity in the interference pattern is x : 4 where...

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Q JEE MAIN 2022

Two coherent sources of light interfere. The intensity ratio of two sources is 1 : 4. For this interference pattern...

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Q JEE Main 2019

Two coherent sources produce waves of different intensities which interfere. After interference, the ratio of the maximum intensity to the...

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Q JEE MAIN 2021

A sound wave of frequency 245 Hz travels with the speed of 300 ms–1 along the positive x-axis. Each point...

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Q JEE MAIN 2021

In Young's double slit arrangement, slits are separated by a gap of 0.5 mm, and the screen is placed at...

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Q JEE MAIN 2021

Consider the diffraction pattern obtained from the sunlight incident on a pinhole of diameter 0.1μm. If the diameter of the...

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Q JEE-MAIN 2021

A fringe width of 6 mm was produced for two slits separated by 1 mm apart. The screen is placed...

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Q JEE MAIN 2021

A point source of light S , placed at a distance 60 cm infront of the centre of a plane...

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Q JEE MAIN 2021

An unpolarized light beam is incident on the polarizer of a polarization experiment and the intensity of light beam emerging...

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Q JEE MAIN 2021

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R....

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Q JEE MAIN 2021

In a Young's double slit experiment two slits are separated by 2 mm and the screen is placed one meter...

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Q JEE MAIN 2021

In a Young's double slit experiment, the width of the one of the slit is three times the other slit....

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Q JEE MAIN 2021

Two coherent light sources having intensity in the ratio 2x produce an interference pattern. The ratio $...

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Q JEE MAIN 2021

If the source of light used in a Young's double slit experiment is changed from red to violet :

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Q JEE MAIN 2022

A tuning fork of frequency 340 Hz resonates in the fundamental mode with an air column of length 125 cm...

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Q JEE MAIN 2022

In a Youngs double slit experiment, an angular width of the fringe is $0.35^{\circ}$ on a screen placed at 2...

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Q JEE MAIN 2022

In young's double slit experiment performed using a monochromatic light of wavelength $\lambda$, when a glass plate ( $\mu=1.5$ )...

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Q JEE MAIN 2022

An EM wave propagating in $x$-direction has a wavelength of 8 mm . The electric field vibrating $y$-direction has maximum...

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Q JEE MAIN 2022

Two light beams of intensities 41 and 91 interfere on a screen. The phase difference between these beams on the...

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Q JEE MAIN 2022

An unpolarised light beam of intensity 2I0 is passed through a polaroid P and then through another polaroid Q which...

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Q JEE Main 2022

In a Young’s double slit experiment, a laser light of 560 nm produces an interference pattern with consecutive bright fringes...

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Q JEE MAIN 2022

Two beam of light having intensities 1 and 41 interfere to produce a fringe pattern on a screen. The phase...

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Q JEE MAIN 2022

In young’s double slit experiment, the fringe width is 12 mm. If the entire arrangement is placed in water of...

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Q JEE MAIN 2022

In a double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the...

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Q JEE MAIN 2022

A sinusoidal wave $y(t)=40 \sin \left(10 \times 10^6 \pi t\right)$ is amplitude modulated by another sinusoidal wave $...

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Q JEE MAIN 2022

A light whose electric field vectors are completely removed by using a good Polaroid, allowed to incident on the surface...

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Q JEE MAIN 2022

The interference pattern is obtained with two coherent light sources of intensity ratio 4 :1. And the ratio $...

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Q JEE MAIN 2022

For a specific wavelength 670 nm of light coming from a galaxy moving with velocity v, the observed wavelength is...

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Q JEE MAIN 2022

Two light beams of intensities in the ratio of 9 : 4 are allowed to interfere. The ratio of the...

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Q JEE MAIN 2022

$\sqrt{d_1}$ and $\sqrt{d_2}$ are the impact parameters corresponding to scattering angles $60^{\circ}$ and $90^{\circ}$ respectively, when an $\alpha$ particle is...

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Q JEE MAIN 2022

Using Young's double slit experiment, a monochromatic light of wavelength 5000 Å produces fringes of fringe width 0.5 mm ....

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Q JEE MAIN 2022

In Young’s double slit experiment the two slits are 0.6 mm distance apart. Interference pattern is observed on a screen...

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Q JEE MAIN 2022

A longitudinal wave is represented by $x=10 \sin 2 \pi\left(n t-\frac{x}{\lambda}\right) \mathrm{cm}$. The maximum particle velocity will be four times...

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Q JEE MAIN 2022

Sodium light of wavelengths 650 nm and 655 nm is used to study diffraction at a single slit of aperture...

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Q JEE MAIN 2022

In free space, an electromagnetic wave of 3 GHz of 3 GHz frequency strikes over the edge of an object...

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Q JEE MAIN 2022

Given below are two statements Statement I : Davisson-Germer experiment establishes the wave nature of electrons. Statement II : If...

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Q JEE MAIN 2022

The two light beams having intensities I and 91 interfere to produce a fringe pattern on a screen. The phase...

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Q JEE-Main_2024

In a single slit diffraction pattern, a light of wavelength $6000 \AA$ is used. The distance between the first and...

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Q JEE MAIN 2024

In Young's double slit experiment, monochromatic light of wavelength 5000 Å is used. The slits are 1.0 mm apart and...

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Q JEE MAIN 2024

A parallel beam of monochromatic light of wavelength 5000Å is incident normally on a single narrow slit of width 0.001...

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Q JEE-Main_2024

In Young's double slit experiment, light from two identical sources are superimposing on a screen. The path difference between the...

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Q JEE MAIN 2024

A microwave of wavelength 2.0cm falls normally on a slit of width 4.0 cm. The angular spread of the central...

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Q JEE MAIN 2024

When a polaroid sheet is rotated between two crossed polaroids then the transmitted light intensity will be maximum for a...

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Q JEE MAIN 2024

A beam of unpolarised light of intensity I_0 is passed through a polaroid A and then through another polaroid B...

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Q JEE MAIN 2023

A beam of light consisting of two wavelengths $7000 \AA$ and $5500 \AA$ is used to obtain interference pattern in...

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Q JEE MAIN 2025

In a Young's double slit experiment, two slits are located 1.5 mm apart. The distance of screen from slits is...

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Q JEE MAIN 2025

In a Young's double slit experiment, the source is white light. One of the slits is covered by red filter...

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Q JEE MAIN 2023

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion...

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Q JEE MAIN_2025

Width of one of the two slits in a Young's double slit interference experiment is half of the other slit....

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Q JEE MAIN_2025

Two monochromatic light beams have intensities in the ratio 1:9. An interference pattern is obtained by these beams. The ratio...

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Q JEE MAIN 2023

In a Young's double slits experiment, the ratio of amplitude of light coming from slits is 2:1. The ratio of...

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Q JEE MAIN 2023

The ratio of intensities at two points $P$ and $Q$ on the screen in a Young's double slit experiment where...

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Q JEE MAIN 2023

The width of fringe is 2 mm on the screen in a double slits experiment for the light of wavelength...

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Q JEE MAIN 2023

Given below are two statements : Statement I : If the Brewster's angle for the light propagating from air to...

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Q JEE MAIN 2023

The displacement equations of two interfering waves are given by $y_1=10 \sin \left(\omega t+\frac{\pi}{3}\right) \mathrm{cm}$ and $...

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Q JEE MAIN 2023

Two light waves of wavelengths 800 and 600 nm are used in Young's double slit experiment to obtain interference fringes...

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Q JEE MAIN 2023

As shown in the figure, in Young's double slit experiment, a thin plate of thickness $\mathrm{t}=10 \mid \mathrm{a} \cdot \mathrm{m}$...

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Q JEE MAIN_2023

A scientist is observing a bacteria through a compound microscope. For better analysis and to improve its resolving power he...

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Q JEE MAIN 2023

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Q JEE MAIN 2023

A single slit of width $a$ is illuminated by a monochromatic light of wavelength 600 nm . The value of...

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Q JEE MAIN 2023

As shown in figures, three identical polaroids $P_1, P_2$ and $P_3$ are placed one after another. The pass axis of...

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Q JEE MAIN 2024

A parallel beam of monochromatic light of wavelength 600nm passes through single slit of 0.4mm width. Angular divergence corresponding to...

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Q JEE MAINS 2023

The distance between two consecutive points with phase difference of 60° in a wave of frequency 500 Hz is 6.0...

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Q JEE MAIN 2023

In Young's double slit experiment, two slits $\mathrm{S}_1$ and $\mathrm{S}_2$ are 'd' distance apart and the separation from slits to...

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Q JEE MAINS 2023

In Young's double slits experiment, the position of 5th bright fringe from the central maximum is 5 cm. The distance...

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Q JEE MAIN 2023

Two polaroide A and B are placed in such a way that the pass-axis of polaroids are perpendicular to each...

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Q JEE MAIN_2023

'n' polarizing sheets are arranged such that each makes an angle 45° with the proceeding sheet. An unpolarized light of...

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Q JEE MAIN 2023

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R Assertion...

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Q JEE MAIN 2023

In a Young's double slit experiment, two slits are illuminated with a light of wavelength 800 nm . The line...

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Q JEE MAINS 2024

Two waves of intensity ratio $1: 9$ cross each other at a point. The resultant intensities at the point, when...

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Q JEE MAIN 2024

Two wavelengths $\lambda_1$ and $\lambda_2$ are used in Young's double slit experiment $\lambda_1=450 \mathrm{~nm}$ and $\lambda_2=650 \mathrm{~nm}$. The minimum order...

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Q JEE MAIN

Which of the following phenomena does not explain by wave nature of light. (A) reflection (B) diffraction (C) photoelectric effect...

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Q JEE MAIN 2024

In Young's double slit experiment, carried out with light of wavelength 5000Å , the distance between the slits is 0.3...

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Q JEE MAIN

A monochromatic light of wavelength 6000Å is incident on the single slit of width 0.01mm. If the diffraction pattern is...

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Q JEE-Main_2024

The diffraction pattern of a light of wavelength 400 nm diffracting from a slit of width 0.2 mm is focused...

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Q JEE MAIN 2024

In a double slit experiment shown in figure, when light of wavelength 400 nm is used, dark fringe is observed...

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Q JEE MAIN 2025

In a Young's double slit experiment, the slits are separated by 0.2 mm. If the slits separation is increased to...

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Q JEE MAIN 2025

A thin transparent film with refractive index 1.4 , is held on circular ring of radius 1.8 cm . The...

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Q JEE MAIN 2025

Which of the following phenomena can not be explained by wave theory of light ?

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Q JEE MAIN 2025

Two coherent monochromatic light beams of intensities 4I and 9I are superimposed. The difference between the maximum and minimum intensities...

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Q JEE MAIN 2025

Young's double slit interference apparatus is immersed in a liquid of refractive index 1.44. It has slit separation of 1.5...

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Q JEE MAIN 2025

In a Young's double slit experiment, three polarizers are kept as shown in the figure. The transmission axes of $P_{1}$...

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Q JEE MAIN 2025

Two plane polarized light waves combine at a certain point whose electric field components are $...

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Q JEE MAIN 2025

If the measured angular separation between the second minimum to the left of the central maximum and the third minimum...

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Q JEE MAIN 2025

A light wave is propagating with plane wave fronts of the type $x + y + z = $ constant....

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Q JEE MAIN 2025

A double slit interference experiment performed with a light of wavelength 600 nm forms an interference fringe pattern on a...

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Q JEE MAIN 2025

The Young's double slit interference experiment is performed using light consisting of 480 nm and 600 nm wavelengths to form...

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Q JEE MAIN 2025

The width of one of the two slits in Young's double slit experiment is $d$ while that of the other...

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Q JEE MAIN 2025

A transparent film of refractive index, 2.0 is coated on a glass slab of refractive index, 1.45. What is the...

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