Interference of light corresponds to conservation of energy because
A. All fringes are of equal width.
B. All bright fringes are of same intensity and the dark fringes are of same intensity.
C. All fringes are separated by equal distance.
D. Energy is transferred from dark fringe to bright fringe.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → B and D only
- (B) All bright fringes have the same intensity and all dark fringes have the same intensity — this shows a consistent redistribution of energy.
- (D) Energy is transferred from dark fringes to bright fringes — energy is not lost, only redistributed, satisfying conservation of energy.
Options (A) and (C) relate to fringe pattern geometry, not energy conservation.