Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:

Assertion (A) : In interference, different maximas have same intensity.

Reason (R) : In diffraction phenomenon, different maximas have different intensities.

Options:

Both are true. (R) is the correct explanation of (A)

Both are true. But (R) is NOT the correct explanation of (A)

(A) is true but (R) is false.

(R) is true but (A) is false.

Correct Answer:

Both are true. But (R) is NOT the correct explanation of (A)

Explanation:
  1. All bright bands receive equal amount of energy. Hence, all are of same intensity in interference.
  2. Only central maxima receives the most amount of energy and intensities of remaining maximas decreases.