Which of the following situations could cause light to diffract?

A. Light enters a new medium with a different density

B. Light passes through a small opening

C. Light hits a surface and bounces off

D. Light is absorbed by a dark surface

B. Light passes through a small opening

Explanation:

Diffraction is one of the properties of wave defined as the bending of wave around corners. It occurs mostly when waves passes through a tiny opening or slit. The type of waveform generated by the wave depends on the type of opening or slit that the medium passes through. The opening can be tiny or large.

Based on the definition, it can be inferred that the situation that causes light waves to diffract is when the light passes through a small opening. For example, the light of a torch passing through a tiny door hole is diffraction.

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explanation: