GATE - Physics मॉक टेस्ट

The de Broglie wavelength of an electron and a proton having the same kinetic energy will be:

A torque of 10 N·m acts on a body of moment of inertia 2 kg·m². The angular displacement in 3 s starting from rest is:

The entropy change for the reversible isothermal expansion of an ideal gas from volume V₁ to V₂ is:

A parallel plate capacitor with air between plates has capacitance C₀ and is charged to voltage V₀. It is then disconnected from the battery and the plate separation is doubled. The new energy stored in the capacitor is:

A straight conductor of length 0.5 m carries a current of 2 A in a uniform magnetic field of 0.4 T perpendicular to the conductor. The force on the conductor is:

A Carnot engine works between 500 K and 300 K. Its efficiency is:

The threshold frequency for a metal is 5 × 10¹⁴ Hz. The work function of the metal is (h = 6.626 × 10⁻³⁴ J·s):

A particle moves along a straight line with displacement s = 3t³ + 2t² + t + 1. Its acceleration at t = 2 s is: