Dispersion of Light

is refracted twice

is refracted thrice

is reflected once

is reflected twice

red and green

red, yellow and green

red, blue and orange

red, green and blue

reflection of light

refraction of light

rarefaction of light

all of them

shape diamonds

straighten mirrors

check the surface of glass

check the density of liquids

Moon

Earth

Sun

Wall

amplitude changes

speed changes

frequency and wavelength change

wavelength changes only

rainforests

dry forests

deserts

highlands

20 degree

22 degree

24 degree

26 degree

away from the normal path

towards the normal path

away from the plane

towards the plane

convex and biconvex

concave and biconcave

biconvex and biconcave

convex and concave