Physics: Light

Question 1

What is the Function Of the Iris?

Answer 1

Contracts or relaxes to let light in

Question 2

What is the function of the Cornea?

Answer 2

Refracts light rays

Question 2

What is the function of the Pupil?

Answer 2

A Hole that lets light rays into the eye

Question 3

What is the function of the Retina?

Answer 3

Takes Light and changes it into signals

Question 4

What is the function of the Optical Nerve?

Answer 4

Carries signals to brain

Question 5

What does Red and Green Make?

Answer 5

Yellow

Question 6

What does Green and Blue make?

Answer 6

Cyan

Question 7

What does Red and Blue Make?

Answer 7

Magenta

Question 8

What does Red, Green and Blue Make?

Answer 8

White

Question 9

What Happens when a Lens gets thicker?

Answer 9

The focal length gets shorter

Question 10

What Are the 7 Colours of white Light?

Answer 10

Roy, G, BIV

Question 11

How many colours make white light?

Answer 11

7

Question 12

What is Refraction?

Answer 12

When light changes speed when it enters or exits a medium

Question 13

What is the Law of Reflection?

Answer 13

Where the angle of incidence is equal to the angle of reflection

Question 14

Why is a concave reflector used in tv dishes?

Answer 14

If reflects all light rays to the focal point making a stronger signal