Question

Explain photoelectric effect and discuss the characteristics of photoelectric effect

Answer 1

✿Answer:-

The Photoelectric Effect is a phenomenon in which electrons are ejected from the surface of a metal when light is incident on it. These ejected electrons are called photoelectrons.

✿Characteristics of photoelectric effect✿

• The Absence Of Lag Time .
• The Independence of the kinetic energy of photoelectrons on the intensity of incident radiation.
• The Presence of Cut - Off Frequency.

Answer 2

Answer:

Photoelectric efftct:

It is the phenomenon of ejection of electrons by certain metal when light of suitable frequency strike on them.

Characteristics:

a) There is no time lag between the striking of light beam and the ejection of electrons from the metal.

b) The number of electrons ejected is proportional to the intensity or brightness of light.

c) The kinetic energy of the ejected electrons id directly porpotional to the frequency of the light used.