Question

The slider in the left side of the simulation window allows you to change the amplitude of the light wave emitted by the light bulb. What happens to the intensity of the central bright fringe if the amplitude of the light wave is increased?

A. It decreases.
B. It increases.
C. It stays the same.

Answer 1

Answer:

B. It increases.

Explanation:

In wave theory we know that the

intensity of the wave ∝ (amplitude)^2

So, when the amplitude of the light wave is increase it's intensity will becomes 4 times of the initial intensity.

hence, the intensity increases. Therefore, option B is correct.

Answer 2

Answer:

The wave height changes when the amplitude changes.

Explanation:

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