The change of the direction of a wavefront as a result of a change in the velocity of the wave in another medium is called

Assessment: WAEC SSCE - Physics - 1992 (Objective) Subject: Physics

Question 1 Report

The change of the direction of a wavefront as a result of a change in the velocity of the wave in another medium is called
Answer Details
The change of the direction of a wavefront as it moves from one medium to another due to a change in its velocity is called refraction. When a wave encounters a boundary between two media with different densities or refractive indices, its velocity changes, and this causes the wave to change direction. The bending of light as it passes through a lens is a common example of refraction. The amount of bending that occurs depends on the angle of incidence and the refractive indices of the two media.

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