waves

Question 1

what is the rule for angle of incidence

Answer 1

angle of incidence is equal to angle of reflection

Question 2

what happens when a ray of light hits a plain mirror

Answer 2

it’s reflected back off at the same angle using the normal line

Question 3

what is refraction

Answer 3

when waves change speed as they pass through a boundary this causes them to change direction and be refracted

(water waves from deep to shallow )

Question 4

why does refraction happen

Answer 4

refraction happens when speed of wave changes this happens bc light travels slower in dense materials like glass

water waves travel slower in shallow water

Question 5

what is ionising radiation

Answer 5

radiation that can remove electrons
from atoms or molecules to produce ions

Question 6

geosynchronous satellite

Answer 6

has an orbit time of 24hrs
it returns to the same point every 24 hours

Question 7

geostationary satellites

Answer 7

geostationary orbit never leaves its position

Question 8

what is the speed of electromagnetic waves

Answer 8

3x10 to the power of 8