Q. Two light sources are said to be of coherent nature
A) When they have same frequency and a varying phase difference
B) When they have same frequency and a constant phase difference
C) When they have constant phase difference and different frequencies
D) When they have varying phase difference and different frequencies
Explanation
The correct answer is Option B: When they have same frequency and a constant phase difference.
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.