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प्रश्न
A concave mirror always forms a real image.
विकल्प
True
False
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उत्तर
This statement is False.
Explanation:
A concave mirror can form both real and virtual images. The nature of the image depends on the distance of the object from the mirror.
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संबंधित प्रश्न
A ray of light is incident normally on a plane mirror. What will be the
angle of reflection?
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
- What will be the focal length of this mirror?
- Which type of spherical mirror will it provide?
- State whether this spherical mirror will diverge or converge light rays.
The diverging lens in part (a) is replaced by a converging lens also of focal length 100 mm. The object remains in the same position and an image is formed by the converging lens. Compare two properties of this image with those of the image formed by the diverging lens in part (a).
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.
Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.
An object is placed at 4 cm distance in front of a concave mirror of radius of curvature 24 cm. Find the position of image. Is the image magnified?
What is a mirror formula?
Name the type of mirror used in the following situation:
Side/rear-view mirror of a vehicle
Support your answer with reason.
Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror? What is the nature of the image and the mirror?
The image formed in a plane mirror is always inverted.
