Q. The photo-electrons emitted from a surface of sodium metal are such that
A) They all are of the same frequency
B) They have the same kinetic energy
C) They have the same de Broglie wavelength
D) They have their speeds varying from zero to a certain maximum
Explanation
The correct answer is Option D: They have their speeds varying from zero to a certain maximum.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.