Optics Quiz 1

Question 1

What is light?

Answer 1

A steam of photons that are massless particles each travelling with wavelike properties at the speed of light.

Question 2

What is a photon?

Answer 2

The smallest quantity of energy which can be transported

Question 3

What are the 3 properties of light?

Answer 3

Light travels in straight lines, light does not need a medium to travel, in vacuum or air, speed of light is constant

Question 4

what is the speed of light?

Answer 4

3.0 x 10^8 m/s

Question 5

List the electromagnetic waves from highest to lowest frequencies

Answer 5

Gamma rays, x-rays, ultraviolet rays, visible light, inferred rays, microwaves, radio waves.

Question 6

Why is it called visible light?

Answer 6

It is the only portion of the spectrum that our eyes have evolved to detect

Question 7

What are the 4 types of light?

Answer 7

Chemiluminescence, Bioluminescence, Phosphorescence, Fluroescennce

Question 8

What is the rectilinear propagation?

Answer 8

It is that light travels in a straight line as long as its travelling through the same medium.