P4.2 Light

A ray of light arriving at a surface is called .

• reflected ray

• incident ray

• normal ray

• none of the above

The angle between the reflected ray and the normal drawn at the point where the ray hits the surface is called .

• angle of refraction

• angle of bounce

• angle of reflection

• angle of incidence

Law of reflection state that the angle of incidence is .................. to the angle of reflection.

Draw a ray diagram, labelling clearly the normal, incident ray, angle of incidence, reflected ray and angle of reflection accurately.
Which is the correct diagam? 

• A

• B

• C

• D

Which statement is correct?

• The angle of incidence at mirror X is 30°.

• The angle of incidence at mirror Y is 60°.

• The angle of reflection at mirror X is 120°.

• The angle of reflection at mirror Y is 0°.

If a capital letter R is seen in an ordinary mirror, what does it look like?

• A

• B

• C

• D

Which of the following is the mirror image of the word "EXAMPLE" when it is placed facing the plane mirror?

• A

• B

• C

• D

Which of the following best describes the term "refractive index"?

• The number that represents the amount a substance bends light

• the number that represents the amount a light ray is reflected

• the angle through which light bends

• none of the above

The refractive index of glass is 1.33. If the angle of incidence is 45^o. What is the angle of refraction?

• 45^o

• 32^o

• 53^o

• 50^o

Which diagram shows how a ray of light could pass through a glass block in air?

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