Reflection And Refraction Flashcards
1
Q
Why does the refracted line change direction when it hits another surface?
A
Because the density changes
2
Q
is the angle of refraction the same as the angle of incidence or different?
A
it’s the same
3
Q
is water more or less dense than air
A
water is more dense
4
Q
do waves travel at the same speed?
A
no they travel at different speeds
5
Q
when light reaches ‘glass to air’ boundary on the other side of the window, it’s passing into a less or more dense medium. so it speeds up or slows down and bends
A
less dense
speeds up
6
Q
what is meant by the “normal” when talking about reflection?
A
a normal line is a line drawn at 90 degrees to a surface, at the point that an incident ray reaches the surface
