If ray travelling in air is incident on a transparent med...
If ray travelling in air is incident on a transparent medium as shown in the diagram, the refractive index of the medium is given as
cosα / sinβ
sinα / sinβ
cosβ / sinα
sinβ / sinα
Correct answer is A
n=sinisinr
i=90−α
∴
⇒ n = \frac{cos \alpha}{sin \beta}
Similar Questions
Neutron were discovered by ...
Which of the following features of an electrostatic line of force is not correct? ...
The resultant force of a couple is ………? ...
An object 0 lies at a distance m in front of concave mirror of focal length f. If m < f, then the...
A wave has an amplitude equal to 4.0m, angular speed \frac{1}{3} \pi rads-1 and phase angle \(\f...
The tendency of a body to remain at rest when a force is applied to it is called. ...
Which of the following electromagnetic waves has the highest frequency? ...