Question

1) For a concave mirror at what object distance does the associated image transition between upright and inverted?

2) As the object distance increases through the distance you answered in part one does the image transition from upright to inverted or from inverted to upright?

3) For object distances slightly less than the distance you answered in part one is the image location near or far from the mirror and is it in front of or behind the mirror?

4) For object distances slightly more than the distance you answered in part one is the image location near or far from the mirror and is it in front of or behind the mirror?

5) For distances near to the distance you answered in part one is the image reduced or enlarged and is it reduced or enlarged by a small or large amount?

6) Which type of lens exhibits a similar behavior, converging or diverging?

Answer 1

Answers :

Part (1) Answer : For a concave mirror the associated image transition between upright and inverted occurs when object distance is equal to focal length of the mirror.

When object distance is greater than the focal length - The image will be Real and Inverted. And, when the object distance is less than the focal length - The image will be Virtual and Upright.

Part (2) Answer : As the object distance increases through the distance you answered in part one - the image transition from upright to inverted.

Part (3) Answer : For object distances slightly less than the distance you answered in part one - the image location is far from the mirror and it is behind the mirror.

Part (4) Answer : For object distances slightly more than the distance you answered in part one - the image location is far from the mirror and is it in front of the mirror.

Part (5) Answer : For distances near to the distance you answered in part one - the image is enlarged and is it enlarged by a large amount.

Part (6) Answer : converging lens.