© examsnet.com
Question : 4
Total: 11
The refractive indices of glass and water with respect to air are 3 ∕ 2 4 ∕ 3 2 × 10 8 m ∕ s
Solution:
Refractive index of a medium
=
For glass,
=
Speed of light in air=
× 2 × 10 8 = 3 × 10 8 m ∕ s
For water,
=
Speed of light in water
= 3 × 10 8 ×
= 2.25 × 10 8 m ∕ s
For glass,
Speed of light in air
For water,
Speed of light in water
© examsnet.com
Go to Question: