Question

Water has a refractive index of 1.33 and air has refractive index of 1.00 find the critical angle for a water air boundary

Answer 1

Explanation:

Correct option is

C

48

∘

45

1

From snells law we have

a

u

w

=

sini

c

1

,

sini

c

=

a

u

w

1

=

1⋅33

1

i

c

=48

∘

45

1

.