Question

9. A ray of light is incident on a glass slab making
angle of 60degrees with the surface. Calculate the angle
refraction in glass if the refractive index of glass
1.5
1) sin-'(1/3)
2) 30°
3) 45°
4) 50°​

Answer 1

Answer:

Using Snell's law :

μ

1

sin i=μ

2

sin r

1×sin60

∘

=1.5×sin r

r=35

∘

15

′

And V

glass

=

μ

c

=

1.5

3×10

8

m/s

=2×10

8

m/s

Answer 2

Answer:

2 ad answer is the answer