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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
A spherical iron ball of 10 cm radius is coated with a layer of ice of uniform thickness that melts at a rate of $...
JEE Main Mathematics Easy
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Q JEE MAIN 2020
A capillary tube made of glass of radius 0.15 mm is dipped vertically in a beaker filled with methylene iodide (surface tension $=0.05 \mathrm{Nm}-1$, density...
JEE Main Physics Easy
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Q JEE MAIN 2020
If $...
JEE Main Mathematics Medium
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Q JEE MAIN 2020
If the number of five digit numbers with distinct digits and 2 at the $10^{\text {th }}$ place is 336 k , then k is...
JEE Main Mathematics Easy
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Q JEE MAIN 2020
In the following digital circuit, what will be the output at ‘Z’, when the input (A, B) are (1, 0), (0, 0), (1, 1,), (0,...
JEE Main Physics Easy
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Q JEE MAIN 2020
The value of
$\cos ^3\left(\frac{\pi}{8}\right) \cdot \cos \left(\frac{3 \pi}{8}\right)+\sin ^3\left(\frac{\pi}{8}\right) \cdot \sin \left(\frac{3 \pi}{8}\right)$ is
JEE Main Mathematics Easy
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Q JEE MAIN 2020
A charge $Q$ is distributed over two concentric conducting thin spherical shells radii $r$ and $R(R>r)$. If the surface charge densities on the two shells...
JEE Main Physics Medium
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Q JEE MAIN 2020
Two uniform circular discs are rotating independently in the same direction around their common axis passing through their centres. The moment of inertia and angular...
JEE Main Physics Medium
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Q JEE MAIN 2020
If for all real triplets $(a, b, c), f(x)=a+b x+c x^2$; then $\int_0^1 f(x) d x$ is equal to
JEE Main Mathematics Medium
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Q JEE MAIN 2020
Let the observations $x_i(1 \leq i \leq 10)$ satisfy the equations, $\sum_{\mathrm{i}=1}^{10}\left(\mathrm{x}_{\mathrm{i}}-5\right)=10$ and $\sum_{\mathrm{i}=1}^{10}\left(\mathrm{x}_{\mathrm{i}}-5\right)^2=40$. If $\mu$ and $\lambda$ are the mean and the variance of...
JEE Main Mathematics Medium
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