JEE Main - Physics Mock Tests

In a Young double slit experiment, the separation between the slits is 0.5 mm and the screen is 1 m away. If the wavelength of light is 500 nm, the fringe width is:

The self-inductance of a solenoid is proportional to:

A gas occupies a volume of 4 L at a pressure of 2 atm and temperature of 300 K. If the gas is compressed to 2 L and the temperature is raised to 450 K, the new pressure is:

The cyclotron frequency of a charged particle moving perpendicular to a uniform magnetic field B is:

A current of 2 A flows through a conductor of resistance 10 Ω. The power dissipated is:

The work function of a metal is 4.2 eV. The threshold wavelength for photoelectric emission is approximately:

The bulk modulus of a liquid is 2 × 10⁹ N/m². The fractional change in volume of the liquid when subjected to a pressure of 4 × 10⁶ N/m² is:

A long straight wire carries a current of 10 A. The magnetic field at a perpendicular distance of 0.1 m from the wire is: (μ₀/4π = 10⁻⁷ T·m/A)