DISPERSION OF LIGHT

How are the colours of the rainbow formed?

• from the sun hitting water

• From light hitting objects

• Trought different wavelenghts of refracted light

when does a rainbow occur in nature?

• after a snowstorm

• after a rainstorm,when the sun comes out

which colours of the rainbow have the longest wavelength?

• violet

• indigo

• red

rainbows are just straingt lines across the sky?

• no,they are full circle

• they are a half cresent

what causes ligth to refrect off of certain objects?

• when the beam of light goes through the object,the light bounces off because the light is pointed at an angle

• the object is not transparent

• the object is transparent

white light is a mixture of

• six colours

• seven colours

• eigth colours

inside rain droplet,light

• is refracted twice

• is refracted thrice

• is reflected once

waves on top of spectrum are

• infrared waves

• gamma rays

• ultraviolet rays

enable you to see a rainbow,sun should be positoned

• infront of you

• behind you

• on your left side

• on your right side

angle which is formed between normal ray and ray entering a medium is known as

• critical angle

• angle of refraction

• angle of reflection