The diagram shows monochromatic light passing…

Physics Questions

The diagram shows monochromatic light passing through two openings. What do the areas labeled X, Y, and Z represent? Options: A) Constructive interference where waves cancel each other out, B) Constructive interference where waves strengthen each other, C) Destructive interference where waves cancel each other out, D) Destructive interference where waves strengthen each other.

Answer

Constructive interference occurs when waves reinforce each other, leading to a higher amplitude. This happens when waves are in phase, meaning they have the same displacement at corresponding points. Destructive interference, by contrast, takes place when waves are out of phase, resulting in cancellation, which can reduce the resultant amplitude to zero if they are identical. In terms of light waves, bright areas represent constructive interference, while dark areas signify destructive interference. Since points X, Y, and Z are bright, they exemplify constructive interference where the light waves enhance each other’s effect.

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