When light travels from medium X to medium Y as shown:
A)both the speed and the frequency decrease
B)both the speed and the frequency increase
C)both the speed and the wavelength decrease
D)both the speed and the wavelength increase
E)both the wavelength and the frequency are unchanged

Question

When light travels from medium X to medium Y as shown: 
A)both the speed and the frequency decrease 
B)both the speed and the frequency increase 
C)both the speed and the wavelength decrease 
D)both the speed and the wavelength increase 
E)both the wavelength and the frequency are unchanged

Quizplus · Accepted Answer

When light travels from medium X to medium Y, it enters a denser medium. As a result, both the speed and the wavelength of light decrease. This is because light travels slower in a denser medium and the frequency of light remains constant regardless of the medium it travels through. Therefore, the correct choice is C, as both the speed and the wavelength decrease.

When Light Travels from Medium X to Medium Y as Shown