Question

the angle of incidence in a plane mirror is 60 degree.the angle between the incident ray and reflected ray is
i)120 degrees
ii)150 degress
iii)30 degrees
iv)180 degrees​

Answer 1

Answer:

Correct option is

B

120

o

i+r=60

o

For mirrors, i=r

So, i=30

o

∴δ=180−2i=120

o