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प्रश्न
Explain the images formed by a concave mirror.
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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
Consider the following diagram in which M is a mirror and P is an object and Q is its magnified image formed by the mirror.
State the type of the mirror M and one characteristic property of the image Q.
The angle between an incident ray and the plane mirror is 30°. The total angle between the incident ray and reflected ray will be:
(a) 30°
(b) 60°
(c) 90°
(d) 120°
What is a spherical mirror? Distinguish between a concave mirror and a convex mirror.
What is the minimum number of rays required for locating the image formed by a concave mirror for an object? Draw a ray diagram to show the formation of a virtual image by a concave mirror.
A concave mirror has a focal length of 25 cm. At which of the following distance should a person hold his face from this concave mirror so that it may act as a shaving mirror?
(a) 45 cm
(b) 20 cm
(c) 25 cm
(d) 30 cm
Give reason for your choice.
What is the position of the image when an object is placed at a distance of 20 cm from a concave mirror of focal length 20 cm?
A real image of an object is to be obtained. The mirror required for this purpose is:
(a) convex
(b) concave
(c) plane
(d) either convex or concave
According to cartesion sign convention, which mirror and which lens has negative focal length?
Which of the following ray diagrams is correct for the ray of light incident on a concave mirror as shown in figure?
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 |
 |
 |
| A | B | C | D |
An erect and enlarged image can be formed by
