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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
An ideal gas in a closed container is slowly heated. As its temperature increases, which of the following statements are true?
(A) the mean free...
JEE Main Physics Easy
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Q JEE MAIN 2020
When the temperature of a metal wire is increased from 0°C to 10°C, its length increases by 0.02%. The percentage change in its mass density...
JEE Main Physics Medium
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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 a wavelength 700 nm is...
JEE Main Physics Easy
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Q JEE MAIN 2020
In a plane electromagnetic wave, the directions of electric field and magnetic field are represented by $\hat{\mathrm{k}}$ and $2 \hat{\mathrm{i}}-2 \hat{\mathrm{j}}$ respectively. What is the...
JEE Main Physics Easy
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Q JEE MAIN 2020
Let $f(x)=x \cdot\left[\frac{x}{2}\right]$ for $-10
JEE Main Mathematics Easy
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Q JEE MAIN 2020
The number of words, with or without meaning, that can be formed by taking 4 letters at a time from the letters of the word...
JEE Main Mathematics Easy
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Q JEE MAIN 2020
The natural number m , for which the coefficient of $x$ in the binomial expansion of $\left(x^m+\frac{1}{x^2}\right)^{22}$ is 1540 , is $\_\_\_\_$ .
JEE Main Mathematics Medium
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Q JEE MAIN 2020
If the line, $2 x-y+3=0$ is at a distance $\frac{1}{\sqrt{5}}$ and $\frac{2}{\sqrt{5}}$ from the lines $4 x-2 y+\alpha=0$ and $6 x-3 y+\beta=0$, respectively, then the...
JEE Main Mathematics Easy
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Q JEE MAIN 2020
Four fair dice are thrown independently 27 times. Then the expected number of times, at least two dice show up a three or a five,...
JEE Main Mathematics Medium
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Q JEE MAIN 2020
If the volume of a parallelopiped, whose coterminus edges are given by the vectors $\vec{a}=\hat{i}+\hat{j}+n \hat{k}, \vec{b}=2 \hat{i}+4 \hat{j}-n \hat{k}$ and $...
JEE Main Mathematics Medium
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