## What Can One Say About The Size Of The Magnification Of A Single Convex Mirror??

You know now that the magnification of a single convex mirror is **always positive**. What can one say about the size of the magnification of a single convex mirror? ANSWER: … Because they create an upright image that is smaller than the object, convex mirrors are used in many different places.

## What is the value of the magnification of a convex mirror?

So, the image formed in a convex mirror is always virtual and diminished. So, the magnification of a convex mirror is always **less than 1**.

## Why is the magnification of a convex mirror less than 1?

Magnification produced by a convex mirror is always less than 1. This is because **the size of the image formed by a convex mirror is smaller than the object**.

The size of the image formed by a convex mirror is **half the size of the object**, when the latter is held at a distance of 30 cm from the mirror.

## How do you find the magnification of a convex mirror?

**Expert Answer:**

- Magnification m = -v/u = 0.7.
- where v is mirror to image distance and u is mirror to object distance .
- we are given u = -30 cm ( Cartesian sign convention is applied)
- hence , v = 0.7×30 = 21 cm.
- we have mirror eqn., (1/v) + (1/u) = 1/f, where f is focal length.

## Why magnification of convex mirror is positive?

The sign of magnification depend on the sign convention chosen. According to the new Cartesian sign conventions, magnification for a convex mirror is positive **because image formed by a convex mirror is always virtual and erect**. A concave mirror can form virtual or erect images and also real, inverted images.

## What is magnification what can be the value of magnification?

magnification, in optics, **the size of an image relative to the size of the object creating it**. Linear (sometimes called lateral or transverse) magnification refers to the ratio of image length to object length measured in planes that are perpendicular to the optical axis.

## What does it mean if magnification is less than 1?

A magnification of 1 (plus or minus) means that the image is the same size as the object. If m has a magnitude greater than 1 the image is larger than the object, and an m with a magnitude less than 1 means **the image is smaller than the object**.

## Which of the following is the magnification produced by a convex mirror?

Magnification produced by convex mirror is **always less than one and positive**, since the image formed is always diminished and erect.

## What is the magnification produced by a plane mirror and why?

What does this mean? Hint: The magnification of a mirror is defined as the increase in size of the image of an object.

## What can you tell about the size and orientation of an image formed in a mirror?

**are the same size as the object, are located behind the mirror, and are oriented in the same direction as the object (i.e., “upright”)**. … If you walk behind the mirror, you cannot see the image, because the rays do not go there.

## What would be the size of image formed by convex mirror when the object is placed at infinity?

There are only two possibilities of position of object in the case of a convex mirror, i.e. object at infinity and object between infinity and pole of a convex mirror. Object at infinity: When the object is at the infinity, a **point sized image** is formed at principal focus behind the convex mirror.

## What are the characteristics of an image formed by a concave mirror if the magnification is?

(a) The nature of the image formed by a concave mirror, with a magnification of , is **virtual and erect** because the magnification has a plus sign. (b) The nature of the image formed by a concave mirror, with a magnification of , is real and inverted because the magnification has a minus sign.

## What is magnification in mirror?

Magnification of mirrors

Magnification is the increase in the image size produced by spherical mirrors with respect to the object size. It is the ratio of the height of the image to the height of the object and is denoted as m. The magnification, m produced by a spherical mirror can be expressed as: **m=hh**.

## What do you know about magnification?

Magnification is **the process of enlarging the apparent size, not physical size, of something**. This enlargement is quantified by a calculated number also called “magnification”. When this number is less than one, it refers to a reduction in size, sometimes called minification or de-magnification.

## How can you tell the magnification of a mirror?

- The mirror formula is 1f=1v+1u. …
- The magnification m is given by m=−vu.
- According to sign conventions, for a concave mirror, the focal length (f) is negative, the object distance (u) is negative, the image distance (v) is positive for a virtual image and negative for a real image.

## What is the magnification of concave mirror and convex mirror?

Magnification of **a convex mirror is always positive**, but that of a concave mirror may be both positive or negative.

## What is the magnification of convex mirror positive or negative?

Magnification of a **convex mirror is always positive** , but that of a concave mirror may be both positive or negative . This magnification can tell us about the nature of the image based on the sign itself. If the ratio is negative then the image is real and inverted.

## What is the significance of negative magnification and magnification less than 1?

What is the significance of negative magnification and magnification less than 1? Answer. If the magnification is less than 1 then **the image formed is inverted and real as size of image is smaller than size of object**.

## What can you say about the size of the image of the value of its magnification is 1?

The magnification produced by a plane mirror is +1 means then **the size of the image is equal to the size of the object**. If m has a magnitude greater than 1 the image is larger than the object, and an m with a magnitude less than 1 means the image is smaller than the object.

## How does magnification affect the image of the object?

This means that when one goes up (increases), the other goes down (decreases). As such, an increase in the magnification, such as when using a more powerful objective lens, would **decrease the field of vision**. This means that only a small area of the projected image can be seen through the oculars.

## What is magnification write its significance?

We begin by defining what we mean by magnification. Magnification is **the ratio of the image distance to the object distance**. The magnification can either be positive or negative. The sign before the magnification tells us the nature of the image formed.

## When image formed is smaller than object then magnification is?

Also if the image is smaller than the object, magnification is **less than 1** because the image generated is smaller than the actual object.

## What does magnification of 1 means image is of same size image is diminished image is enlarged none of the above?

F is false; a magnification of -1 means that the image would be inverted (negative M) and the same size as the object (1); the middle image is the same size as the object but it is not inverted.

## What could the possible value of magnification for real inverted and smaller image of an object?

For a real and inverted image, the height of the **image is negative** and the height of the object is positive. So the magnification of the mirror is negative.

## What is magnification in convex mirror?

**always less than one**.

## What is the value of magnification when the size of image formed by a convex mirror is equal to the size of the object?

The magnification of the concave mirror is **-1**.

According to given question, the size of the image formed by a concave mirror is equal to the size of the object. Hence, this is the required solution.

## What is the magnification produced by a convex lens?

The image size formed by the convex lens may be less than, equal to or greater than the size of the object. Therefore, linear magnification produced by a convex lens can be **less than 1, equal to or more than 1**.

## What can be said about magnification of image formed by plane mirror?

The magnification of the image formed by a plane mirror is **1 because size of the image is equal to the size of the object**.

## Why is magnification of a plane mirror always one?

**The distance of object and distance of image are equal in the case of a plane mirror and the object distance is negative**. Which gives us a magnification of +1.

## What is always true about the magnification of a plane mirror?

The magnification produced by a plane mirror is **+1** implies that the image formed by a plane mirror is virtual , erect and of the same size, as that of object.

## What are the location orientation size and type of image formed in lenses?

Image Formation by Convex Lens

Object location | Image location | Image nature |
---|---|---|

Infinity | At F_{2} |
Real and Inverted |

Beyond 2F_{1} |
Between 2F_{2} and F_{2} |
Real and Inverted |

Between 2F_{1} and F_{1} |
Beyond 2F_{2} |
Real and Inverted |

At F_{1} |
At infinity | Real and Inverted |

## How can you describe the image formed by a plane mirror quizlet?

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.