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2019 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
In the circuit shown, find $C$ if the effective capacitance of the whole circuit is to be $0.5 \mu F$. All values in the circuit...
JEE Main Physics Medium
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Q JEE MAIN 2020
A musician using an open flute of length 50 cm produces second harmonic sound waves. A person runs towards the musician from another end of...
JEE Main Physics Medium
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Q JEE MAIN 2019
One kg of water, at $20^{\circ} \mathrm{C}$, is heated in an electric kettle whose heating element has a mean (temperature averaged) resistance of $20 \Omega$....
JEE Main Physics Medium
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Q JEE MAIN 2019
A galvanometer, whose resistance is 50 ohm , has 25 divisions in it. When a current of $4 \times 10^{-4} \mathrm{~A}$ passes through it, its...
JEE Main Physics Easy
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Q JEE MAIN 2019
A spring whose unstretched length is I has a force constant k . The spring is cut into two pieces of unstretched lengths $\mathrm{l}_1$ and...
JEE Main Physics Medium
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Q JEE MAIN 2019
A vertical closed cylinder is separated into two parts by a frictionless piston of mass $m$ and of negligible thickness. The piston is free to...
JEE Main Physics Medium
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Q JEE MAIN 2019
In the figure, given that $\mathrm{V}_{\mathrm{BB}}$ supply can vary from 0 to $5.0 \mathrm{~V}, \mathrm{~V}_{\mathrm{CC}}=5 \mathrm{~V}, \beta_{\mathrm{dc}}=200, \mathrm{R}_{\mathrm{B}}=100 \mathrm{~K} \Omega, \mathrm{R}_{\mathrm{C}}=1 \mathrm{~K} \Omega$ and $...
JEE Main Physics Easy
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Q JEE MAIN 2019
A moving coil galvanometer, having a resistance G , produces full scale deflection when a current Ig flows through it. This galvanometer can be converted...
JEE Main Physics Medium
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Q JEE MAIN 2019
If one real root of the quadratic equation $81 x^2+k x+256=0$ is cube of the other root, then a value of $k$ is
JEE Main Mathematics Medium
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Q JEE MAIN 2019
The electron in a hydrogen atom first jumps from the third excited state to the second excited state and subsequently to the first excited state....
JEE Main Physics Medium
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