LIGHT

A ray of light passes into a parallel-sided glass block of refractive index 1.5. What is the value of the angle marked X?

• 19.5° 

• 25°

• 35°

• 48.5°

Which block is made from the material with a refractive index of 1.52?

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A ray of light passes from glasses to air

Which arrow shows the direction of the ray in air?

• A

• B

• C

• D

The ray diagram shows light reflecting off a plane mirror.

What is the angle between the incident and reflected rays?

• 40°

• 50°

• 80°

• 100°

The diagram shows a plane mirror and the position of an image.

Where must the object be place to form this image?

• A

• B

• C

• D

The diagram shows the path of a ray of light travelling towards and into a pool of water.

Four angles are labeled.

Which two angles would be correctly used in the equation  ?

• P and R

• P and S

• Q and R

• Q and S

What is the angle of refraction for this ray of light moving from glass to air?

• A

• B

• C

• D