Refraction

Question 1

when is light refracted

Answer 1

light is refracted when it travels from one medium to another and changes speed.

Question 2

what happens when a light speeds up on entering a new medium

Answer 2

1) the medium is less optically dense
2) the light is refracted further from the normal meaning that the angle of refraction is larger than the angle of incidence

Question 3

what happens when a light slows down on entering a new medium

Answer 3

1) the medium is more optically dense
2) when light enters a more optically dense medium it is refracted closer to the normal this means that the angle of refraction is smaller than the Angle of incidence

Question 4

The angle of refraction is the angle between the what light ray and the what?

Answer 4

1) refracted

2) the normal

Question 5

what is diffraction

Answer 5

diffraction is when waves reach a narrow gap in a surface and continue to travel through the gap and spread out into the area beyond the gap