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प्रश्न
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
पर्याय
concave
convex
cylindrical
parabolic
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उत्तर
convex
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संबंधित प्रश्न
Image formed by a convex ______ is always virtual and smaller in size.
Define the Focal length of a spherical mirror
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.
(a) When a concave mirror is used as a shaving mirror, where is the person's face in relation to the focus of mirror?
(b) State three characteristics of the image seen in part (a).
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
Define the following term:
convex mirror
The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?
What is the difference between virtual images of an object formed by a concave mirror and a convex mirror?
