When you approach a blinking light source which in turn is moving towards you,you perceive an increase in
A)both speed and frequency of the light.
B)speed,but not frequency of the light.
C)frequency of the light,but not speed.

Question

Quizplus · Accepted Answer

The speed of light remains constant in a vacuum, regardless of the motion of the source or observer. However, the frequency of the light increases due to the Doppler effect when the source moves towards the observer.

When You Approach a Blinking Light Source Which in Turn