Q. Kinetic energy of emitted cathode rays is dependent on
A) Only voltage
B) Only work function
C) Both (a) and (b)
D) It does not depend upon any physical quantity
Explanation
(c) Higher the voltage, higher is the $KE.$ Higher the work function, smaller is the $KE$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.