List of top Physics Questions on Ray optics and optical instruments asked in Rajasthan PMT

If the critical angle for total internal reflection from medium to vacuum is $ 30{}^\circ $ , the velocity of light in medium is

If a ray of light is incident on an equilateral glass prism PQR placed on a horizontal table, then for the minimum deviation which of the following is true?

An astronomical telescope has two lenses of focal powers $0.5\, D$ and $20\, D$. Then its magnifying power will be :

A concave mirror of focal length $15\, cm$ forms an image having twice the linear dimension of the object. The position of the object when the image is virtual will be:

If the critical angle for total internal reflection from a medium to vacuum is $ 30{}^\circ $ , then the speed of light in the medium is

A prism has a refracting angle of $ 60{}^\circ $ . If it produces a minimum deviation of $ 30{}^\circ $ in an incident ray, the angle of incidence is