Light and Mirrors

Simple astronomical telescopes produce inverted images because the objective lens forms a real inverted image, and the eyepiece doesn't correct this orientation. This is why terrestrial telescopes require erecting lenses or prisms to show upright images.

The image formed by a plane mirror is always unmagnified and erect.

n = (360/72) - 1 = 4

A person of height h is standing at the centre of the room looking towards a plane mirror hung on a wall. He can see the whole height of the wall behind him if the length of the mirror is h/2. 

A "real object" always produces a "virtual image" in a plane mirror. This is because the reflected rays diverge.

The image has left-right reversal.

Convex mirrors are used as side-view mirrors in vehicles because they provide a wider field of view, allowing the driver to see more of the traffic behind them.

This is the correct answer. Image formed in th plane mirror is virtual and cannot be obtained on the screen.

This is the correct answer. Light hitting the mirror is called incident ray and leaving is called reflected ray.

This is the correct answer. Option band c have a rough surface hence they will produce diffused reflection of light. 

This is the correct answer. Plane mirror forms virtual image which cannot be obtain on the screen.

This is the correct answer. For shaving concave mirror is used not the plane mirror to have a magnified view.

This is the correct answer as both the statements are false . Image formed in the plane mirror is not real and  it is laterally inverted. 

A magnified and virtual image of an object can be obtained by using a concave mirror.

An air bubble in water acts as a concave lens because the refractive index of the surrounding medium (water) is higher than that of the material inside the bubble (air).