A spherical mirror produces an image of magnification 1 on a screen placed at a distance of 50cm from mirror.
What is type of mirror ?
Find distance of image of object ?
Find focal length of the mirror?
Draw a ray diagram to show this case?
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Answer: (a) Concave Mirror
(b) The distance of image from the object is zero, i.e. a real inverted image of the same size is formed at the same place where object is placed. (Actually the object is placed at the centre of curvature).
(c) Focal length of the mirror f = R/2 = - 50 cm/2 = - 25 cm.(according to sign convention)
Explanation:
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