11 images

## When two plane mirrors are kept at 60 degree to each other we get?

The number of images formed by two plane mirrors depends on the angle between the mirror. Complete step by step solution: Given the angle is θ. So, 360∘60∘= 6, where 6 is an even number.

## Why are the mirrors in a periscope placed at an angle of 45 with the vertical?

It’s important that your mirrors are placed at a 45° angle, because light always reflects away from a mirror at the same angle that it hits it. In a periscope, light from an object strikes the top mirror at 45° and bounces off at the same angle. This mirror, also at a 45° angle, reflects light directly to your eye.

## Is the final image formed in a periscope laterally inverted?

The final image produced by the periscope is without lateral inversion. This is because the light rays from the object are reflected by two mirrors, so the lateral inversion caused by the first mirror is reversed by the second mirror….

four images

## How are periscopes used today?

Periscopes are still used today in tanks and some submarines. In the periscope, light hits the top mirror at 45° and reflects away at the same angle. The light then bounces down to the bottom mirror. When that reflected light hits the second mirror it is reflected again at 45°, right into your eye.

## Which image is formed by plane mirror?

The image formed by a plane mirror is always virtual (meaning that the light rays do not actually come from the image), upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location from which the light rays appear to come.

## How many images are obtained when plane mirrors are arranged parallel to each other?

The number of images for a point object placed between two plane mirrors that are arranged parallel , facing each other at some distance is infinite.