Ray Optics and ...

The centre of curvature of a concave mirror :

A magnifying glass forms:

A water pond appears to be $$2.7$$ in deep. If the refractive index of water is $$4/3$$, find the actual depth of the pond.

What characteristic property of light is responsible for the blue colour of the sky?

An astronaut in a spaceship the sky appears black due to:

A small air bubble in a glass block when seen from above appears to be raised because of:

The instrument that is based on the principle that when an object is placed between first principal focus and the optic centre of convex lens, an upright, virtual and enlarged image on the same side of the object is formed, is

An object in a denser medium when viewed from a rarer medium appears to be raised. The shift is maximum for :

A ray of light $$OP$$ passes through a right angled prism as shown in the adjacent diagram. State the angles of incidence at the faces $$AC$$ and $$BC$$. Given critical angle is $$42^o$$.

A beam of light consisting of red, green and blue colours is incident on a right-angled prism as shown. The refractive index of the material of the prism for the above red, green and blue wavelengths are 1.39, 1.44 and 1.47 respectively. The prism will