Question

1. an object is placed 15 cm in front of a lens ‘a’ and lens gives real, inverted , magnified image and formed at large distance. lens ‘a’ is replaced by lens ‘b’ and a real, inverted image of the same size as of object is formed. i. what is the nature of lens a&b? ii. what is the focal length of a&b?

Answer 1

Explanation:

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