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Q JEE MAIN 2022
A triangular shaped wire carrying 10A current is placed in a uniform magnetic field of 0.5T, as shown in figure. The magnetic force on segment...
JEE MainPhysicsEasy
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QJEE Main 2022
In a Young’s double slit experiment, a laser light of 560 nm produces an interference pattern with consecutive bright fringes separation of 7.2 mm. Now...
JEE MainPhysicsEasy
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QJEE MAIN 2022
A circuit element X when connected to an a.c. supply of peak voltage 100 V gives a peak current of 5 A which is in...
JEE MainPhysicsMedium
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QJEE MAIN 2022
A steel wire of length 3.2 m $\left(\mathrm{Y}_{\mathrm{s}}=2.0 \times 10^{11} \mathrm{Nm}^{-2}\right)$ and a copper wire of length 4.4 M $\left(Y_C=1.1 \times 10^{11} \mathrm{Nm}^{-2}\right)$, both of...
JEE MainPhysicsMedium
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QJEE MAIN 2022
Given below are two statements : Statement I: A uniform wire of resistance $80 \Omega$ is cut into four equal parts. These parts are now...
JEE MainPhysicsEasy
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QJEE MAIN 2022
Mass numbers of two nuclei are in the ratio of $4: 3$. Their nuclear densities will be in the ratio of
JEE MainPhysicsEasy
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QJEE Main 2022_
A freshly prepared radioactive source of half life 2 hours 30 minutes emits radiation which is 64 times the permissible safe level. The minimum time,...
JEE MainPhysicsEasy
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QJEE MAIN 2022
A juggler throws balls vertically upwards with same initial velocity in air. When the first ball reaches its highest position, he throws the next ball....
JEE MainPhysicsMedium
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QJEE Main 2022
If the projection of $2 \hat{i}+4 \hat{j}-2 \hat{k}$ on $\hat{i}+2 \hat{j}+\alpha \hat{k}$ is zero. Then, the value of $\alpha$ will be
JEE MainPhysicsEasy
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QJEE MAIN 2022
In an experiment to find out the diameter of wire using screw gauge, the following observation were noted :
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