# Mirrors

## What is the principle behind periscopes using mirrors?

Periscopes use a system of plane mirrors set at precise angles that allow light to enter from one end, reflect twice, and exit from the other end, enabling views over obstacles or from hidden positions.

What is the principle behind periscopes using mirrors?2024-09-06T12:28:42+05:30

## Can concave mirrors also create virtual images?

Yes, when the object is placed between the focal point and the mirror, concave mirrors produce virtual, erect, and magnified images.

Can concave mirrors also create virtual images?2024-09-06T12:28:17+05:30

## Why do mirrors reverse images left to right but not top to bottom?

Mirrors actually do not reverse images left to right; they reverse front to back. This common misconception arises because we interpret our reflection as another person facing us.

Why do mirrors reverse images left to right but not top to bottom?2024-09-06T12:27:55+05:30

## Why is lateral inversion important in plane mirrors?

Lateral inversion refers to the phenomenon where the left and right sides of an object are reversed in the image. This is a common property of plane mirrors and explains why words appear backward when viewed in a mirror.

Why is lateral inversion important in plane mirrors?2024-09-06T12:26:41+05:30

## What is the mirror formula, and when is it used?

The mirror formula is 1/f = 1/u + 1/v, where f is the focal length, u is the image distance, and v is the object distance. It is used to calculate the position and nature of the image formed by concave and convex mirrors.

What is the mirror formula, and when is it used?2024-09-06T12:26:05+05:30

## What are some common uses of convex mirrors?

Convex mirrors are used in vehicle rearview mirrors to provide a wider field of view, and they are also installed in stores and at intersections for security and safety purposes.

What are some common uses of convex mirrors?2024-09-06T12:19:46+05:30

## What is the difference between a real and a virtual image?

A real image is formed when light rays actually meet after reflection or refraction. It can be projected onto a screen and is inverted. A virtual image is formed when light rays appear to diverge from a point behind the mirror; it cannot be projected onto a screen and is always upright.

What is the difference between a real and a virtual image?2024-09-06T12:19:13+05:30

## Why do concave mirrors form real and virtual images, but convex mirrors only form virtual images?

Concave mirrors can focus light rays to form real images when the object is beyond the focal point. However, convex mirrors cause light rays to diverge, so they always form virtual images behind the mirror, making them useful for a wider field of view.

Why do concave mirrors form real and virtual images, but convex mirrors only form virtual images?2024-09-06T12:18:04+05:30