Question

For the same angle of incidence the angle of refraction in two media a and b are 25 degree and 35 degree respectively in which medium the speed of the light is less

Answer 1

Hey,
The speed of light in the second mefium is less since the RI of a medium is inversely proportional to the speed .

Hope this helps u buddy !!
Take care:)

Answer 2

The medium in which the speed of light is less is media A

Suppose, the angle of incident is = i

The angle of refraction in media A = 25°

The angle of refraction in media B = 35°

We know, from the rule of refraction,

Sin i = μ Sin r [r is the refraction angle]

⇒ μ = Sin i/ Sin r

⇒ μ ∝ 1/ Sin r

Or, μ ∝ 1/r

Or, r ∝ 1/μ

And, speed of light in a medium, v = c/μ [c is the speed of light in free space which is constant]

∴ v ∝ 1/μ

∴ v ∝ r

So, of which the medium refractive angle is less, the velocity of the light is less.

So, the medium A will have less velocity of light.