Question

Light waves are incident on an air-glass
boundary. Some of the light waves are
reflected and some are refracted in the glass.
Which one of the following properties is the
same for the incident wave and the refracted
wave ?
(a) Speed
(b)
Direction
(c)
Brightness
(d)
Frequency​

Answer 1

Answer:

Frequency is the property of light, and so it remains the same for incident and refracted wave.

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