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2019 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
$\int_0^{\pi / 3} \frac{\tan \theta}{\sqrt{2 k \sec \theta}} d \theta=1-\frac{1}{\sqrt{2}},(k>0)$, then the value of $k$ is
JEE Main Mathematics Easy
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Q JEE MAIN 2019
In the given circuit, the charge on $4 \mu \mathrm{~F}$ capacitor will be
JEE Main Physics Medium
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Q JEE MAIN_2019_
Two radioactive materials A and B have decay constants $10 \lambda$ and $\lambda$, respectively. If initially they have the same number of nuclei, then the...
JEE Main Physics Easy
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Q JEE MAIN 2019
The number density of molecules of a gas depends on their distance $r$ from the origin as $n(r)=n_0 e^{\alpha r^4}$. Then the total number of...
JEE Main Physics Medium
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Q JEE MAIN_2019_
A $25 \times 10^{-3} \mathrm{~m}^3$ volume cylinder is filled with 1 mol of $\mathrm{O}_2$ gas at room temperature ( 300 K ). The molecular diameter...
JEE Main Physics Easy
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Q JEE MAIN 2019
A string is clamped at both the ends and it is vibrating in its 4th harmonic. The equation of the stationary wave is Y =...
JEE Main Physics Easy
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Q JEE MAIN 2019
Let $\mathrm{A}(4,-4)$ and $\mathrm{B}(9,6)$ be points on the parabola, $\mathrm{y}^2=4 \mathrm{x}$. Let C be chosen on the arc AOB of the parabola, where $O$ is...
JEE Main Mathematics Easy
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Q JEE MAIN 2019
A tuning fork of frequency 480 Hz is used in an experiment for measuring speed of sound (v) in air by resonance tube method. Resonance...
JEE Main Physics Medium
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Q JEE MAIN 2019
An ideal gas is enclosed in a cylinder at pressure of 2 atm and temperature, 300 K . The mean time between two successive collisions...
JEE Main Physics Medium
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Q JEE MAIN_2019_
n moles of an ideal gas with constant volume heat capacity CV undergo an isobaric expansion by certain volume. The ratio of the work done...
JEE Main Physics Easy
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