Physical Science 22

Select True or False. Nearsightedness is caused when the retina is behind the focal point of an eye’s lens.

• True

• False

Select True or False. A converging lens spreads rays of light apart.

• True

• False

Tags

NGSS.MS-PS4-2

Select True or False. When a light ray approaches the boundary between two media at a certain angle of incidence, it reflects rather than refracts. This effect is known as critical angle reflection.

• True

• False

Tags

NGSS.MS-PS4-2

Select True or False. A higher index of refraction indicates a slower speed of light.

• True

• False

Tags

NGSS.MS-PS4-2

Select True or False. A medium’s index of refraction is the ratio of the speed of light in air to the speed of light in the medium.

• True

• False

Select True or False. A medium’s index of refraction is the ratio of the speed of light in a vacuum to the speed of light in the medium.

• True

• False

Select True or False. Real images can be projected; virtual images cannot.

• True

• False

Select True or False. The color brown is not part of the visible light spectrum.

• True

• False

Select True or False. Mixing all primary additive colors produces white light.

• True

• False

Farsightedness is corrected using _____________ lenses.