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General Knowledge · Q535

Practice

Competitive Exams · General Knowledge · question 535

Q535

When light passes from air into glass it experiences change of

A.
frequency and wavelength
B.
frequency and speed
C.
wavelength and speed
Answer
D.
frequency, wavelength and speed

Answer: Option C

Solution

Answer: Option C
Solution:
When light passes from air into glass it experiences change of wavelength and speed. Waves change speed when they pass across the boundary between two different substances, such as light waves refracting when they pass from air to glass. This causes them to change direction and this effect is called refraction.