Q. Photoelectric effect was first successfully explained by

A) Planck
B) Hallwach
C) Hertz
D) Einstein
Explanation

The correct answer is Option D: Einstein.

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.