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QJEE-Main 2024
Let the line $\mathrm{L}: \sqrt{2} \mathrm{x}+\mathrm{y}=\alpha$ pass through the point of the intersection P (in the first quadrant) of the circle $x^2+y^2=3$ and the parabola...
JEE MainMathematicsMedium
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QJEE MAIN
A proton and an electron are associated with same de-Broglie wavelength. The ratio of their kinetic energies is: (Assume $...
JEE MainPhysicsMedium
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QJEE MAIN 2024
In the experiment to determine the galvanometer resistance by half-deflection method, the plot of 1/θ vs the resistance (R) of the resistance box is shown...
JEE MainPhysicsMedium
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QJEE MAIN 2024
A soap bubble is blown to a diameter of 7 cm . 36960erg of work is done in blowing it further. If surface tension of...
JEE MainPhysicsMedium
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QJEE-Main 2024
In the expansion of $(1+x)\left(1-x^2\right)\left(1+\frac{3}{x}+\frac{3}{x^2}+\frac{1}{x^3}\right)^5, x \neq 0$, the sum of the coefficient of $x^3$ and $x^{-13}$ is equal to
JEE MainMathematicsMedium
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QJEE MAIN
Which of the following phenomena does not explain by wave nature of light. (A) reflection (B) diffraction (C) photoelectric effect (D) interference (E) polarization Choose...
JEE MainPhysicsEasy
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QJEE MAIN 2024
Twelve wires each having resistance $2 \Omega$ are joined to form a cube. A battery of 6 V emf is joined across point a and...
JEE MainPhysicsMedium
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QJEE MAIN 2024
An ac source is connected in given series LCR circuit. The rms potential difference across the capacitor of 20μF is ..............V.
JEE MainPhysicsMedium
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QJEE-Main 2024
Let $\{x\}$ denote the fractional part of $x$ and $f(x)=\frac{\cos ^{-1}\left(1-\{x\}^2\right) \sin ^{-1}(1-\{x\})}{\{x\}-\{x\}^3}, x \neq 0$. If $L$ and R respectively denotes the left hand...
JEE MainMathematicsMedium
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QJEE MAIN
Average force exerted on a non-reflecting surface at normal incidence is $2.4 \times 10^{-4} \mathrm{~N}$. If $360 \mathrm{~W} / \mathrm{cm}^2$ is the light energy flux...
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