Navigate

Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV.

Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV. The minimum kinetic energy of the emitted photo-electrons will be

Options

(a) 0 eV
(b) 1 eV
(c) 2 eV
(d) 10 eV

Correct Answer:

0 eV

Explanation:

Minimum kinetic energy is always zero, when the photon loses its energy by collision.

MP2001
admin:

Related Questions

  1. A heavy nucleus at rest breaks into two fragments which fly off with velocities
  2. A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
  3. The potential energy of a 1 kg particle free to move along the x-axis is given by
  4. A certain mass of Hydrogen is changed to Helium by the process of fusion
  5. In a water fall, the water falls from a height of 100 m. If the entire kinetic energy