A light source embedded in a block of glass emits a ray a frequency of 5.7×1014Hz. When the light ray exits the glass into vacuum, which of the following statements about what happens will be true? Assume the glass has an index of refraction of 1.5 and is perfectly transparent and does not absorb any light.

A. The speed of the light will increase.
B. The light's amplitude will stay the same.
C. The light's speed will stay the same.
D. The light's amplitude will increase.
E. The light's wavelength will stay the same.
E The light's frequency will decrease.
G. The number of photons will stay the same.
H. The light's frequency will stay the same.
I. The light's wavelength will decrease.
J. The number of photons per second will increase.
K. The light's wavelength will increase.
L. The light's amplitude will decrease.
M. The frequency of the light will increase.
N. The light's speed will decrease.

The fundamental role of light sources is to create visible or near-visible radiant energy for general lighting and specialist applications. The correct options are A , B, G, H, K.

What is a light source?

The fundamental role of light sources is to create visible or near-visible radiant energy for general lighting and specialist applications.

They include incandescent, fluorescent, and high-intensity discharge (HID) lamps, as well as a pin- or screw-based solid-state lighting (SSL).

The correct statements are

(A)The speed of light will increase.

(B)The light's amplitude will remain constant. provided no energy is absorbed.

(G)No photons per second will remain constant because the intensity of light remains constant.

(H)The light's frequency will not change.

(K)The light's wavelength will increase.

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