Physics-(general)
NEET Physics (general) Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 12
Assertion (A): When a plane wave is incident on a surface separating two media, the wavefronts bend towards the normal if the velocity of the wave decreases in the second medium. | Reason (R): The bending of the wavefronts is due to the change in wavelength when the wave enters a medium with a different velocity.
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 bending of the wavefronts towards the normal occurs when the wave velocity decreases in the second medium, consistent with Snell's Law and the change in wavelength.
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