Question

If the critical angle is 30°. Then

what is the refractive index of rarer

medium with respect to denser

medium? ( Given : sin 30°= 0.5 )​

Answer 1

Answer:

n

12

=

n

r

n

d

sin90

sinθ

=

n

3

n

2

sinR

sini

=

n

1

n

2

sini=sinr

sinR

sinr

=

n

1

n

2

=

sin90

sinθ

c

cosr

sinr

=sinθ

c

cosr

tanr=sinθ

c

r=tan

−1

(sinθ

c

)

Explanation:

thank you ❤️....