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QJEE MAIN 2022
A square aluminium (shear modulus is $25 \times 10^9 \mathrm{Nm}^{-2}$ ) slab of side 60 cm and thickness 15 cm is subjected to a shearing...
JEE MainPhysicsMedium
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QJEE MAIN 2022
29. The energy band gap of semiconducting material to produce violet (wavelength = 4000 Å) LED is _____ eV. (Round off to the nearest integer).
JEE MainPhysicsEasy
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QJEE MAIN 2022
A box contains 0.90 g of liquid water in equilibrium with water yapour at $27^{\circ} \mathrm{C}$. The equilibrium vapour pressure of water at $...
JEE MainChemistryEasy
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QJEE MAIN
An ice cube of dimensions $60 \mathrm{~cm} \times 50 \mathrm{~cm} \times 20 \mathrm{~cm}$ is placed in an insulation box of wall thickness 1 cm ....
JEE MainPhysicsHard
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QJEE Main 2022
The current sensitivity of a galvanometer can be increased by : (A) decreasing the number of turns (B) increasing the magnetic field (C) decreasing the...
JEE MainPhysicsEasy
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QJEE MAIN 2022
Eight copper wire of length l and diameter d are joined in parallel to form a single composite conductor of resistance R. If a single...
JEE MainPhysicsEasy
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QJEE MAIN 2022
The effective current I in the given circuit at very high frequencies will be ____A.
JEE MainPhysicsHard
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QJEE MAIN 2022
Match List – I with List –II Choose the correct answer from the options given...
JEE MainPhysicsEasy
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QJEE MAIN 2022
A mass 0.9 kg , attached to a horizontal spring, executes SHM with an amplitude $\mathrm{A}_1$. When this mass passes through its mean position, then...
JEE MainPhysicsHard
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QJEE MAIN 2022
In the given figure, the value of $V_0$ will be $\_\_\_\_$ V.
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