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प्रश्न
The spherical mirror with a reflecting surface curved inward is called
विकल्प
convex mirror
concave mirror
curved mirror
None of the above
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उत्तर
Concave mirror
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Centre of curvature
Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
Name the mirrors shown in Figure (a) and (b).
At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to the size of the object.
Select the correct option:
Which mirror is used in periscope?
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 “aperture”?
