Question:
A plane mirror is placed 22 5 cm in front of a concave
Last updated: 5/29/2023
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A plane mirror is placed 22 5 cm in front of a concave mirror An object is placed between the two mirrors at 7 5cm from plane mirror so that the first image in both the mirrors coincides The focal length of mirror a 20 cm b 15 cm c 10 cm d 5 cm