if the angle of a triangular prism is A and the refractive index of the material is u , then under what conditions will there will be no emergent ray (in terms of A and u) 1. A =2sin-(1/u) 2 A 2sin-(1/u) 4. sin-(1/u)< A <2sin-(1/u)

Open in App

Solution

Suggest Corrections

Similar questions

A ray of light passes from vacuum into a medium of refractive index $μ$ . If the angle of incidence is found to be twice the angle of refraction, then the angle of incidence is:( $sin 2 r = 2 sin r cos r$ )

If the critical angle for the medium of a prism is C and the angle of prism is A, then there will be no emergent ray when

Q. If the critical angle for the medium of a prism is

C

and the angle of prism is

A

, then there will be no emergent ray when

Q. A river is flowing with a speed of

1 {kmh}^{- 1}

. A swimmer wants to go to point

C

starting form

A

. He swims with a speed of

5 {kmh}^{- 1}

at an angle

θ

with the river flow. If

AB = BC = 400 m

, at what angle with the river bank should the swimmer swim?

Q. If

2 sin \frac{A}{2} = \sqrt{1 + sin A} + \sqrt{1 - sin A}

, then

\frac{A}{2}

lies between

Join BYJU'S Learning Program