AIPMT-MAIN Physics Dual Nature of Matter & Radiation Class 12 Questions

The work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the stopping potential is 5 V lies in the

A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3 × 10⁶ ms⁻¹. The velocity of the particle is (mass of electron = 9.1 × 10⁻³¹ kg)