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प्रश्न
An erect and enlarged image can be formed by
पर्याय
only a convex mirror.
only a concave mirror.
only a plane mirror.
both convex and concave mirrors.
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उत्तर
only a concave mirror.
Expalantion:
Concave mirror forms a virtual, erect and enlarged image.
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संबंधित प्रश्न
For what position of an object, a concave mirror forms a real image equal in size to the object?
Described with the help of a diagram, the nature, size and position of the image formed when an object is placed beyond the centre of curvature of 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.
An object 3 cm high is placed at a distance of 8 cm from a concave mirror which produces a virtual image 4.5 cm high:
(i) What is the focal length of the mirror?
(ii) What is the position of image?
(iii) Draw a ray-diagram to show the formation of image.
A large concave mirror has a radius of curvature of 1.5 m. A person stands 10 m in front of the mirror. Where is the person's 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?
State two uses of a concave mirror.
Concave mirrors are used by dentists to examine teeth. Why?
Which of the following mirror is used by a dentist to examine a small cavity in a patient’s teeth?
To obtain an image twice the size of the object, between which two points related to a concave mirror should an object be placed?
