8.4 REFRACTION OF LIGHT

8.4 REFRACTION OF LIGHT

by KASMAWATI Moe

Multiple Choice

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

Multiple Choice

Light bending as it passes from one medium (object) to another is...

• Refraction
• Reflection

Multiple Choice

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

Multiple Choice

What is this image showing?

• Reflection
• Refraction
• The law of reflection
• Concave Mirror

Multiple Choice

Why does the lower part of the child appear so much different in size from the upper part?

• The light rays that travel through water and then into air are refracted.
• The light rays that travel through water and then into air are enlarged.
• The light rays that travel through air and then into water are reflected.
• The light rays that travel through air and then into water are reduced.

Multiple Choice

Refraction is when light__________.

• Is bounced by an object or material.

• Changes speed as it travels in different materials which causes bending.

• When light speeds up to over 300,000 km/s

Multiple Choice

Light emerging from water to air will bend ______ due to the change of speed as it crosses the boundary.

• toward the normal

• away from the normal

• along the normal

Multiple Choice

Light travels through air, water, glass and many other materials. What path does it travel to get from one place to another?

• sideways

• back and forth

• straight

• up and down

Multiple Choice

Light changes speed as it travels through various mediums.  What are examples of mediums that light can travel through.

• snow and ice
• air and water
• cloth and wood
• glass and wood

Multiple Choice

The pictures shows what a student observed when he looked through a hand lens at a penny.
What happens to light passing through a hand lens that makes the image of the penny appear larger? The light is-

• absorbed
• reflected
• refracted
• stopped

Multiple Choice

A student placed a pencil in a cup of water. The pencil appears broken because light

• always travels in a straight line.

• bends when it passes through water.

• makes the water in the glass evaporate.

• reflects the pencil on the water's surface.

Multiple Choice

Light bends towards the normal when it travels from glass to air.

• True

• False

Multiple Choice

Light passes into a glass block. Which is the angle of refraction?

• A

• B

• C

• D

Multiple Choice

According to this picture, how is the light ray bent?

• Away from the normal

• Towards the normal

Multiple Choice

The diagram below shows a ray of monochromatic light incident on a boundary between air and glass. Which of the letters represent the path after it strikes the glass?

• A

• B

• C

• D

Multiple Select

A light ray enters a glass block from air as shown in the diagram. The light ray will...

• bend towards the normal

• bend away from the normal

• travel in the same direction

Multiple Select

A light ray enters water from a glass as shown in the diagram. The light ray will.....

(Water is optically less dense than glass.)

• bend towards the normal

• bend away from the normal

• travel in the same direction

Multiple Choice

A light ray enters a glass block along the normal as shown in the diagram. The light ray will...

• bend towards the normal

• bend away from the normal

• travel in the same direction

Multiple Choice

A ray of light in air is incident at an angle on one side of a rectangular glass block, as shown. Which ray diagram correctly describes the complete path of the ray of light?

(Determine if light bends towards or away from normal at each boundary)

Multiple Choice

When does the light is refracted?

• When light travels in a straight line

• When light is bounced

• When light travels in two different mediums

• When light cannot pass through an opaque object

Multiple Select

Which of the following shows the principle of light refraction? Tick the correct answers.

• A

• B

• D

• E

• F

Multiple Choice

A ray of light in air is incident at an angle on one side of a rectangular glass block, as shown. Which ray diagram correctly describes the complete path of the ray of light?

(Determine if light bends towards or away from normal at each boundary)

Multiple Choice

Diagram shows the condition of a spoon in a glass of water.

What can be observed about the spoon?

• The spoon looks bent.

• The water is clearer.

• The water level rises.

• Light is refracted.

Multiple Choice

What is the conclusion from your observation in this picture?

• Light travels in a straight line

• Light can be refracted

• Light can be reflected

• Light can pass through a transparent material

Multiple Choice

What causes the formation of a rainbow?

• Light travels in a straight line

• Reflection of light

• Refraction of light

• Light in bounced in two different mediums

Multiple Select

Which of the following shows that light travels in a straight line? Tick the correct answers.

• A

• B

• C

• D

• E

Multiple Choice

Based on the image, which medium has higher density?

• Medium 1

• Medium 2

• Both mediums are same

• Cannot be determined.

Multiple Choice

Swimming pools and the ocean look shallower than they really are due to:

• reflection 
• dispersion
• refraction
• total internal reflection

Multiple Choice

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

• light bends towards the normal

• light bends away from the normal

Multiple Choice

Why the light did not bend?

• It is not refraction

• Light travel through normal line

• Light travel through same medium

Multiple Choice

Light travel from air to glass. Which is the direction of the light ray

• A

• B

• C

• D