Question

1. If the speed of light in glass is 2 x 108 ms !, what is
the critical angle of the incidence of light traveling
from glass to air?​

Answer 1

Answer:

sin

−1

(4/7)

μ=

v

1

v

2

=

2

3.5

=1.75

θ

cric

=sin

−1

(

μ

1

)=sin

−1

(

1.75

1

)=sin

−1

(4/7)