Angles from Normal

In the diagram, which letter represents the angle of incidence?

• A

• B

• C

• D

• E

What is the line MN called in the given diagram?

• incident ray

• reflected ray

• reflecting surface

• normal

What is the value of the unknown angle (θ) in the following diagram?

• A. 30°

• B. 45°

• C. 90°

• D. 60°

What is the angle of refraction?

• i

• r

• i+r

• 90^o

Which angle is the angle of incidence?

• 1

• 2

• 3

• 4

Which angle is the angle of reflection?

• 1

• 2

• 3

• 4

Which angle is the angle of refraction?

• 3

• 4

• 5

• 6

What is the angle of incidence?

• 30°

• 40°

• 50°

• 60°

What is the angle of reflection?

• 30°

• 40°

• 50°

• 60°

What is the angle of between incident ray and refracted ray?

• 50°

• 80°

• 150°

• 170°