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प्रश्न
Which type of mirror is used in the following?
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उत्तर
Concave mirror
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संबंधित प्रश्न
With the help of an appropriate ray diagram, state the sign conventions for reflection by a spherical mirror.
To determine the approximate value of the focal length of a given concave mirror, you focus the image of a distant object formed by the mirror on a screen. The image obtained on the serene, as compared to the object is always:
(a) Laterally inverted and diminished
(b) Inverted and diminished
(c) Erect and diminished
(d) Erect and highly diminished
Draw ray diagrams to show the principal focus of a concave mirror.
Name the mirror that can give an erect and enlarged image of an object.
For what position of an object, a real and diminished image is formed by a concave mirror?
Briefly describe how you would find the focal length of a concave mirror quickly but approximately
The real image formed by a concave mirror is smaller than the object if the object is:
(a) between centre of curvature and focus
(b) at a distance greater than radius of curvature
(c) at a distance equal to radius of curvature
(d) at a distance equal to focal length
An object is placed at a distance of 10 cm from a concave mirror of focal length 20 cm.
Calculate the image distance.
Name the mirror which can give:
an erect and enlarged image of an object.
If the image formed is always virtual, the mirror can be:
(a) concave or convex
(b) concave or plane
(c) convex or plane
(d) only convex
Draw the ray diagram and also state the position, the relative size and the nature of image formed by a concave mirror when the object is placed at the centre of curvature of the mirror.
A _____________ mirror is used by a dentist.
The mirror having reflection surface curved outward ______.
Rays from Sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?
Under which of the following conditions a concave mirror can form an image larger than the actual object?
The concave reflecting surface of a torch got rusted. What effect would this have on the beam of light from the torch?
______ mirrors make things look larger when objects are placed close to them.
Write the uses of the concave mirror.
To obtain an image twice the size of the object, between which two points related to a concave mirror should an object be placed?
