Question

Critical angle of glass to water is theta 1and that of glass is theta 2. The critical angle for water would be: (ng=3/2 nw=4/3) plz give the answer along with EXPLANATION.

Answer 1

Answer:

using the snale's law

critical angle =θ

1

, n

g

=1.62, n

w

=1.33,θ

2

=90

∘

⇒n

g

sinθ

1

=n

w

sinθ

2

⇒sinθ

1

=

1.62

1.33

×1

⇒θ

1

=55.18

∘