Question

light enters from air to glass having refractive index 1.2then find the speed of light in glass. the speed of light in vacuum is 3 into 10 power 8​

Answer 1

Answer:

a(mew)w is

=r of light in vacuum / ri of light in water(x say)

1.2=3*10^8/x

x=3*10^8/1.2. m/s (solve it)

Answer 2

Dear Student,

◆ Answer -

v = 2.5×10^8 m/s

● Explanation -

# Given -

c = 3×10^8 m/s

n = 1.2

# Solution -

Speed of light passing through a glass is -

v = c / n

Substitute values,

v = 3×10^8 / 1.2

v = 2.5×10^8 m/s

Hence, the speed of light in glass is 2.5×10^8 m/s.

Thanks dear . Hope this is helpful to you..