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प्रश्न
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
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उत्तर
(i) Convex mirror diverges a beam of light falling on it.
(ii) Concave mirror converges a beam of light falling on it.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Principal focus
Explain the following term related to spherical lenses:- centres of curvature
What is a spherical mirror?
What do you understand by the focus and focal length of a spherical mirror? Show them on the separate diagrams for each of a concave mirror and a convex mirror.
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
Draw a ray diagram in each of the following cases to show the formation of image, when the object is placed :
(i) between the optical centre and principal focus of a convex lens.
(ii) anywhere in front of a concave lens.
(iii) at 2F of a convex lens.
State the signs and values of magnifications in the above-mentioned cases (i) and (ii).
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 _______.
Explain why a ray of light passing through the center of curvature of a concave mirror, gets reflected along with the same pattern.
