Refraction

Question 1

What is refraction?

Answer 1

The bending of light. It occurs because light changes speed, and direction when it moves from one medium into another.

Question 2

Incident ray

Answer 2

The ray which is directed onto a surface.

Question 3

Angle of incidence

Answer 3

The angle at which the ray hits a surface.

Question 4

Angle of refraction

Answer 4

The angle made by a refracted ray, which is perpendicular to the refracting surface.

Question 5

Refraction in the eye – what type of lens do we have, what is the purpose of this lens?

Answer 5

We have a biconvex lens, which helps to refract light to be focused into the retina.

Question 6

What is a medium?

Answer 6

A substance which light will travel through. It could be a solid, liquid, or gas.

Question 7

What is equal to the angle of Incidence?

Answer 7

The angle of reflection.

Question 8

Define perpendicular

Answer 8

at an angle of 90 degrees, to a given line, or surface to the ground. (crossing over)