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प्रश्न
Explain the images formed by a concave mirror.
उत्तर
| Position of Object | Position of The Image | Image Size | Nature of the Image |
| At infinity | At F | Highly diminished | Real and inverted |
| Beyond C | Between C and F | diminished | Real and inverted |
| At C | At C | Same size as the object | Real and inverted |
| Between C and F | Beyond C | Magnified | Real and inverted |
| At F | At infinity | Highly magnified | Real and inverted |
| Between F and P | Behind the mirror | Magnified | Virtual and erect |
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संबंधित प्रश्न
We wish to obtain an erect image of an object, using a concave mirror of focal length 15 cm. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case.
If an object is placed at the focus of a concave mirror, where is the image formed?
Give two uses of concave mirrors. Explain why you would choose concave mirrors for these uses.
An object 3 cm high is placed at a distance of 10 cm in front of a converging mirror of focal length 20 cm. Find the position, nature, and size of the image formed.
If the object is moved further away from the mirror, what changes are there in the position and size of the image?
At what distance from a concave mirror of focal length 10 cm should an object be placed so that:
its real image is formed 20 cm from the mirror?
Which of the following are concave mirrors and which convex mirrors?
Radius of curvature of a spherical mirror is ............. its focal length.
A student has to determine the focal length of a concave mirror by obtaining the image of a distant object on a screen. For getting best result he should focus
(A) a distant tree or an electric pole
(B) a well-illuminated distant building
(C) well-lit grills of the nearest window
(D) a burning candle laced at the distant edge of the laboratory table
Draw the ray diagram and also state the position, the relative size and the nature of image formed by a concave mirror when the object is placed at the centre of curvature of the mirror.
