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प्रश्न
What kind of mirror is required for obtaining a virtual image of the same size as the object?
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उत्तर
A plane mirror is required in order to obtain a virtual image of the same size as the object, as this is one of the properties of a plane mirror.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- centres of curvature
Give one use each of a concave and a convex mirror.
A ray of light is incident normally on a plane mirror. What will be the
angle of reflection?
What type of image is formed:
in a plane mirror?
What type of image is formed:
on a cinema screen?
Write the mirror formula. Give the meaning of each symbol which occurs in it.
A diverging lens is used in:
(a) a magnifying glass
(b) a car to see objects on rear side
(c) spectacles for the correction of short sight
(d) a simple camera
A 50 cm tall object is at a very large distance from a diverging lens. A virtual, erect and diminished image of the object is formed at a distance of 20 cm in front of the lens. How much is the focal length of the lens?
Write two more characteristics of the image.
The sun is seen before the sunrise and after the sunset.
AB is the object, A1B1 is its image. MM' is the position of the mirror. Complete the ray diagram and find the position of the center of curvature and focus of the mirror. Also, measure the focal length.
A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.
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
Geometric centre of the spherical mirror is ______.
