Question

35. Write the mirrors used in the following situations with scientific reasons.
a) Headlight of car (front light)
b) Side mirrors of vehicles.
c) Solar furnace
Or
a) Define Snell’s law of refraction.
b) The refractive index of Diamond is 2.42 what is the meaning of this
statement?
c) Light enters from Air to glass having refractive index 1.50 what is the speed
of light in the glass? the speed of light in the vacuum is 3x108 m/s

Answer 1

concave mirror

convex mirror

concave or parabolic mirror

sin i/ sin r = refractive index

it means the speed of light reduces by 2.42% when it travels through diamond