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# Where should an object be placed in front of a concave mirror of focal length 20cm to obtain its erect image?

## Where should an object be placed in front of a concave mirror of focal length 20cm to obtain its erect image?

Answer. 1) To obtain an erect image of object, we should place the object between pole and focus of mirror .

## What will be the magnification when an object is at 20cm?

Refrences. When an object is placed 20 cm from a concave mirror, a real image magnified three times is formed.

## Where should an object be placed in front of a concave mirror?

Now, we know that the radius of curvature is twice the distance of the focal length from the mirror. Hence, the object must be placed at the center of curvature.

## What is the nature of the mirror having a magnification of?

Magnification is defined as ratio of height of image to the ratio of height of object. It is a concave mirror which has magnification denoted by the sign minus. Nature of the mirror is real and inverted.

## How far should objects be placed?

1 Answer. The object should be placed 100 cm to the left of the mirror.

## When an object is placed at a distance of 15 cm?

When an object is placed at a distance of 15 cm from a concave mirror its image is formed at 10 cm in front of the mirror. When an object is placed at a distance of 15 cm from a concave mirror, its image is formed at 10 cm in front of the mirror.

## How far should an object be placed from a concave mirror?

Answer: The object should be placed at a distance of 100 cm from the pole of concave mirror.

## What does it mean when an object is moving?

An object is in motion when its distance from another object is changing. Whether an object is moving or not depends on your point of view. A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point.

## How do you know if an object is moving?

An object is in motion if its distance relative to another object is changing. To tell if an object is moving, you use a reference point. If an object’s distance from another object [reference point] is changing. A place or object used for comparison to determine if something is in motion.

## How fast an object moves is called?

Velocity: the speed and direction an object is moving, measured to a reference point. Acceleration. the rate of change in velocity.

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