A photoelectric cell is illuminated by a point soures of light 1 m away. When the soures is shifted to 2 m then
A photoelectric cell is illuminated by a point soures of light 1 m away. When the soures is shifted to 2 m then
A. each emitted electron carries one quarter of the initial energy
B. number of electrons emitted is half the initial number
C. each emitted electrons carries half the initial energy
D. number of electrons emitted is quarter of the initial number
4 views
1 Answers
Correct Answer - D
(d) : Photoelectric current `Iprop` intensity of light and intensity `prop(1)/(("distance")^(2))`
`:.prop(1)/(("distance")^(2))`
4 views
Answered