2023-2024 NCERT cbse class 10 science sample question paper and answer pdf free download
An object of height 1.2m is placed before a concave mirror of focal length 20 cm so that a real image is formed at a distance of 60 cm from it. Find the position of an object. What will be the height of the image formed?
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Here, object height, h = 1.2 cm,
Focal length, f = -20cm,
Image distance, v = – 60 cm
Object distance, u = ?
Height of image, h′ =?