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2019 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
Figure shows a DC voltage regulator circuit, with a Zener diode of breakdown voltage = 6 V. If the unregulated input voltage varies between 10...
JEE Main Physics Easy
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Q JEE MAIN 2019
A simple harmonic motion is represented by: $$ y=5(\sin 3 \pi t+\sqrt{3} \cos 3 \pi t) c m $$ The amplitude and time period of...
JEE Main Physics Easy
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Q JEE MAIN 2019
A solid sphere, of radius $R$ acquires a terminal velocity $v_1$ when falling (due to gravity) through a viscous fluid having a coefficient of viscosity...
JEE Main Physics Medium
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Q JEE MAIN 2019
The moment of inertia of a solid sphere, about an axis parallel to its diameter and at a distance of x from it, is ‘I(x)’....
JEE Main Physics Hard
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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 crossed with respect to that...
JEE Main Physics Hard
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Q JEE MAIN 2019
In a radioactive decay chain, the initial nucleus is ${ }_{90}^{232}$ th at the end there are $6 \alpha$-particles and particles which are emitted. If...
JEE Main Physics Easy
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Q JEE MAIN 2019
A small speaker delivers 2 W of audio output. At what distance from the speaker will one detect 120 dB intensity sound? [Given reference intensity...
JEE Main Physics Medium
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Q JEE MAIN 2019
A Carnot engine has an efficiency of $\frac{1}{6}$. When the temperature of the sink is reduced by $62^{\circ} \mathrm{C}$, its efficiency is doubled. The temperatures...
JEE Main Physics Hard
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Q JEE MAIN 2019
The mean intensity of radiation on the surface of the Sun is about $10^8 \mathrm{~W} / \mathrm{m}^2$. The rms value of the corresponding magnetic field...
JEE Main Physics Easy
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Q JEE MAIN 2019
An electron, moving along the x-axis with an initial energy of 100 eV , enters a region of magnetic field $\overrightarrow{\mathrm{B}}=\left(1.5 \times 10^{-3} \mathrm{~T}\right) \hat{\mathrm{k}}$...
JEE Main Physics Medium
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