Physics-Interference
NEET Physics Interference Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 12
Assertion (A): Two coherent sources are necessary to produce a sustained interference pattern. | Reason (R): Coherent sources have a constant phase difference over time.
A
Both A and R are true, and R is the correct explanation of A.
B
Both A and R are true, but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
The NCERT context explains that coherent sources, which maintain a constant phase difference, are needed for sustained interference, thus supporting both the assertion and reason.
Found an issue with this question?