AS physics pre reading 2nd feb to 9th feb

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.

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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

Glass has a _____________ index of refraction than air.

• Equal
• Greater
• Less
• Impossible to say

What happens to light during total internal reflection?

• The angle of incidence is greater than the critical angle.

• The angle of reflection is the same as the critical angle.

• The angle of refraction is less than the critical angle.

• The angle of incidence is zero.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-5

Choose the correct statement that describes what happens to the ray of light if the critical angle is 48^o and the angle of incidence is 48^o

• refract

• totally internally reflect

• travel along the boundary

_____ cables transmit beams of light without allowing any of the light to escape until it gets to the end of the cable.

• Ethernet

• Fiber optic

• Armored

• Coaxial

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-5

Which diagram correctly describes the critical angle c for air-water surface?

• A

• B

• C

• D

Give an example of a chemical substance that can polarise light

Which of these waves can NOT be polarised?

• Microwave

• Light

• Sound

• Radio

Which animal's image is refracted in fib B on page 120

• Panda

• Cat

• Duck

• Giraffe