# G11 T2 Quiz 1 Reflection And Refraction

10 Questions
• 1.
A girl looks into a bathroom mirror to brush her hair. The figure shows what she sees in the mirror.In which hand is she holding the brush?
• A.

Right hand

• B.

Left hand

• 2.
What causes refraction when light travels from air into glass?
• A.

The amplitude of the light waves changes.

• B.

The colour of the light changes.

• C.

The frequency of the light waves changes.

• D.

The speed of the light changes.

• 3.
The diagram shows a ray of light entering a block of glass.Which numbered angles are the angles of incidence and of refraction?
• A.

Incidence:1; refraction: 3

• B.

Incidence:1; refraction: 4

• C.

Incidence:2; refraction: 3

• D.

Incidence:2; refraction: 4

• 4.
Which diagram correctly shows a ray of light passing through a rectangular glass block?
• A.

A

• B.

B

• C.

C

• D.

D

• 5.
Light from the Sun passes through a prism and a spectrum is produced on a screen.A thermometer placed at P shows a large temperature rise.Which type of radiation causes this?
• A.

Infra-red

• B.

Microwave

• C.

Ultra-violet

• D.

Visible light

• 6.
The diagram shows a ray of light incident on the edge of a piece of glass. The angle i is biggerthan the critical angle.Which arrow correctly shows the direction of the ray after it leaves the edge of the glass?
• A.

A

• B.

B

• C.

C

• D.

D

• 7.
A man sees a stone at the bottom of a pool of water.Which path could be taken by light from the stone to the man?
• A.

A

• B.

B

• C.

C

• D.

D

• 8.
A ray of light passes from air into a block of glass with index of refraction of 1.5. The angle of incidence is 30 degrees.Calculate the angle of refraction,
• A.

30

• B.

19.5

• C.

0.05

• D.

1

• 9.
The speed of light in air is almost 3x108 m/s. In one piece of glass, light slows down to 2x108 m/s. What is the index of refraction for the glass?
• A.

6

• B.

0.67

• C.

1.5

• D.

5

• 10.
In an optics lesson, a Physics student traces the paths of three rays of light near the boundarybetween medium A and air. The student uses a protractor to measure the various angles.State the critical angle of medium A
• A.

53

• B.

90

• C.

133

• D.

43

Related Quizzes
Featured Quizzes
Related Topics