Question

Lightwaves travel from the air into a lens made of glass. Their velocity decreases as they enter the glass. How does this affect the frequency and wavelength of the lightwaves?
A.
Their frequency stays the same and their wavelength increases.
B.
Their frequency stays the same and their wavelength decreases.
C.
Their frequency increases and their wavelength decreases.
D.
Their frequency decreases and their wavelength increases.

Answer 1

Answer:

b) their frequency stays the same and their wavelength decrease

Explanation:

because velocity of light is directly proportional to the wavelength of light. so when velocity decrease then the wavelength also decrease.

thank you.