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प्रश्न
What is a virtual image?
उत्तर
When the rays of light reflecting from an object appear to meet in a virtual form, then the images formed in this way are called virtual images.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Centre of curvature
A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the angle of reflection?
A concave lens produces an image 20 cm from the lens of an object placed 30 cm from the lens. The focal length of the lens is:
(a) 50 cm
(b) 40 cm
(c) 60 cm
(d) 30 cm
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
Upto what maximum distance from a concave mirror, the image can be obtained? What will be the location of object for it?
Select the correct option:
A concave mirror is made by cutting a portion of a hollow glass sphere of radius 30 cm. The focal length of the concave mirror is:
Select the correct option:
Which mirror is used in periscope?
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Concave mirror
The spherical mirror with a reflecting surface curved inward is called
A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.
