Electromagnetic waves in matter

Light bending as it passes through a rain drop is an example of...

• Refraction
• Reflection

Tags

NGSS.MS-PS4-2

How does light behave as it enters these mediums?

• continue its path as straight line.
• bends toward the normal
• bends away from the normal
• reflects

When light passes at an angle to the normal from one medium into another 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.

Tags

NGSS.MS-PS4-2

Based on the image, as light passes from medium 1 to medium 2

• light speeds up and bends towards the normal

• light speeds up and bends away from the normal

• light slows down and bends towards the normal

• light slows down and bends away from the normal

Tags

NGSS.MS-PS4-2

Which of the following is true?

• When light travels from a vacuum into glass it speeds up.

• When light travels from a vacuum into glass it bends away from the normal.

• When light travels from a vacuum into glass the frequency decreases.

• When light travels from a vacuum into glass the wavelength decreases.

What is a line drawn at 90° to a surface called?

• incident ray

• normal line

• refracted ray

• tangent

What causes refraction?

• A change in frequency of a wave.

• A change in amplitude of a wave

• A change in speed of a wave.

• A change in phase of a wave.

What direction does the ray bend when entering a more optically dense material, where the wave travels more slowly?

• Towards the normal.

• Away from the normal.

• No change.

• Answer is not listed above.

Which of the following is true about a wave that has been refracted?

• The speed and frequency changes, but the wavelength stays the same.

• The speed and wavelength changes, but the frequency stays the same.

• The wavelength and frequency changes, but the speed stays the same.

• The speed and frequency changes, but the amplitude stays the same.

If all other variables are held constant, what happens to the angle of refraction if the angle of incidence increases?

• the angle of refraction stays the same

• the angle of refraction decreases

• the angle of refraction increases

• cannot be determined from the information provided