Question

The threshold energy of a metal is 10 eV. Identify the incorrect option. (E = energy of one photon)


If E = 12 eV, photoelectric effect occurs


If E = 15 eV, kinetic energy of electron is more than option (1)


If intensity of photon increase but energy remain same, then kinetic energy of photoelectron remain same


If intensity of photon increase but energy remain same, then kinetic energy of photoelectron increase

Answer 1

Answer:

The Fourth statement is the incorrect option.

Explanation:

Kinetic energy of photoelectron is independent of the intensity of photon. It only depends on energy of photon.

Hence as long as energy of photon remains same, the kinetic energy of photoelectron does not increase.

All other statements are correct.