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प्रश्न
Name the kind of mirror used to obtain:
A real and diminished image.
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उत्तर
Concave
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संबंधित प्रश्न
Define the Focal length of a spherical mirror
Complete the following sentence:
All the distances are measured from the .......... of a spherical mirror.
Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.
In each case (a) and (b), draw reflected rays for the given incident rays and mark focus by the symbol F.
Name the kind of mirror used to obtain:
A virtual and enlarged image
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:
- the position of the image
- the focal length of the 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?
The spherical mirror used in a beauty parlour as make-up mirror is _______.
The distance from the center of curvature of the mirror to the pole is called the focal length of the mirror.
