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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
Let $[t]$ denote the greatest integer $\leq t$. The number of points where the function $f(x)=[x]\left|x^2-1\right|+\sin \left(\frac{\pi}{[x]+3}\right)-[x+1], x \in(-2,2)$ is not continuous is $\_\_\_\_$ .
JEE Main Mathematics Medium
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Q JEE-MAIN 2021
Water sample is called cleanest on the basis of which one of the BOD values given below
JEE Main Chemistry Easy
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Q JEE MAIN 2021
Which one of the following is the correct PV vs P plot at constant temperature for an ideal gas ? (P and V stand for...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
Statement :1
If three forces $\vec{F}_1, \vec{F}_2$ and $\vec{F}_3$ are represented by three sides of a triangle and $\vec{F}_1+\vec{F}_2=-\vec{F}_3$, then these three forces are...
JEE Main Physics Easy
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Q JEE MAIN 2021
If $\mathrm{V}_{\mathrm{A}}$ and $\mathrm{V}_{\mathrm{B}}$ are the input voltages (either 5 V or 0 V ) and $\mathrm{V}_0$ is the output voltage then the two gates...
JEE Main Physics Hard
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Q JEE MAIN 2021
Choose the correct name for compound given below :
JEE Main Chemistry Easy
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Q JEE-MAIN 2021
A tuning fork is vibrating at 250 Hz. The length of the shortest closed organ pipe that will resonate with the tuning fork will be...
JEE Main Physics Easy
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Q JEE MAIN 2021
A bob of mass m suspended by a thread of length $l$ undergoes simple harmonic oscillations with time period T . If the bob is...
JEE Main Physics Hard
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Q JEE MAIN 2021
Two plane mirrors $M_1$ and $M_2$ are at right angle to each other shown. A point source ' $P$ ' is placed at ' $a$...
JEE Main Physics Easy
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Q JEE MAIN 2021
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Metallic...
JEE Main Chemistry Easy
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