Q. When monochromatic radiation of intensity $I$ falls on a metal surface, the number of photoelectron and their maximum kinetic energy are $N$ and $T$ respectively. If the intensity of radiation is $2I,$ the number of emitted electrons and their maximum kinetic energy are respectively
A) $N$ and $2T$
B) $2N$ and $T$
C) $2N$ and $2T$
D) $N$ and $T$
Explanation
(b) Number of photoelectrons $\propto$ Intensity
Maximum kinetic energy is independent of intensity
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.