A rectangular block of mass 5 kg attached to a horizontal spiral spring executes simple harmonic motion of amplitude 1 m and time period 3.14...
JEE MainPhysicsEasy
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QJEE MAIN 2023
Given below are two statements: Statement I : Out of microwaves, infrared rays and ultraviolet rays, ultraviolet rays are the most effective for the emission...
JEE MainPhysicsMedium
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QJEE MAIN 2023
The ratio of magnetic field at the centre of a current carrying coil of radius $r$ to the magnetic field at distance $r$ from the...
JEE MainPhysicsMedium
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QJEE MAIN 2023
A block of mass 5 kg starting from rest pulled up on a smooth incline plane making an angle of $30^{\circ}$ with horizontal with an...
JEE MainChemistryMedium
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QJEE MAIN 2023
A square loop of side 2.0 cm is placed inside a long solenoid that has 50 turns per centimetre and carries a sinusoidally varying current...
JEE MainPhysicsMedium
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QJEE MAIN 2023
Given below are two statements:- Statement I: In redox titration, the indicators used are sensitive to change in pH of the solution. Statement II:...
JEE MainChemistryMedium
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QJEE MAIN 2023
In the reaction give below:
JEE MainChemistryMedium
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QJEE MAIN 2023
To radiate EM signal of wavelength $\lambda$ with high efficiency, the antennas should have a minimum size equal to :
JEE MainPhysicsEasy
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QJEE MAIN 2023
Two transparent media having refractive indices 1.0 and 1.5 are separated by a spherical refracting surface of radius of curvature 30 cm. The centre of...
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