Critical Angle

Refraction is the bending of a wave disturbance as it passes from one _________ into another.

• glass
• medium
• area
• boundary

Tags

NGSS.MS-PS4-2

The _________ of light can change when light is refracted because the medium changes.

• frequency
• medium
• wavelength
• transparency

Tags

NGSS.MS-PS4-2

When light passes at an angle to the normal from one material into another material in which its speed is higher 

• it is bent toward the normal.
• it always lies along the normal.
• it is unaffected.
• it is bent away from the normal.

When light passes at an angle to the normal from one material into another material in which its speed is lower

• it is bent towards the normal.
• it always lies along the normal.
• it is unaffected.
• it is bent away from the normal.

Tags

NGSS.MS-PS4-2

How is light affected by an increase in the index of refraction?

• Its frequency increases
• Its frequency decreases
• Its speed increases
• Its speed decreases

Tags

NGSS.HS-PS4-1

Which of the following conditions is not necessary for refraction to occur?

• Both the incident and refracting substances must be transparent
• Both substances must have different indicies of refraction.
• The light must have only one wavelength.
• The light must enter at an angle greater than 0° with respect to the normal.

Which of the following describes what will happen to a light ray incident on a glass-to-air boundary at greater than the critical angle?

• total internal reflection
• total external transmission
• partial reflection, partial transmission
• partial reflection, total transmission

Tags

NGSS.HS-PS4-5

Atmospheric refraction of light rays is responsible for which of the following effects? 

• spherical abberation
• mirages
• chromatic abberation
• total internal reflection in a gemstone

When a light ray passes from water (n=1.333) into diamond (n=2.419) at an angle of 45°, its path is

• bent towards the normal
• bent away from the normal
• parallel to the normal
• not bent

Tags

NGSS.MS-PS4-2

When a light ray moves from air into glass, which has a higher index of refraction, its path is 

• bent towards the normal
• bent away from the normal
• parallel to the normal
• not bent