CBSE - X - Physics - Light - Reflection and Refraction
1. detemine the focal length of a spherical mirror which forms a 3 times magnified real image of an object placed 16 cm in front of it.
Will m=3 or m= -3 why
2.the image of an object placed 36 cm from a shpericl lens is formed on a screen at a distace of 72 cm from lens Find its f?
Will v=72 or v= -72 why
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