If the intensity of light at a point of constructive interference is I, what is

If the intensity of light at a point of constructive interference is I, what is the intensity at a point of destructive interference?

If the intensity of light at a point of constructive interference is I, what is the intensity at a point of destructive interference?

Step 1: Understand what constructive interference means. It occurs when two waves combine to make a wave with a larger intensity.
Step 2: Know that at a point of constructive interference, the intensity is given as I.
Step 3: Understand what destructive interference means. It occurs when two waves combine in such a way that they cancel each other out.
Step 4: Realize that when waves cancel each other out completely, the resulting intensity is zero.
Step 5: Conclude that at a point of destructive interference, the intensity is 0.

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