an object is placed at 15cm in front of alens A and lens gives real, inverted, magnified image formed at large distance. LensA is replaced by lend B and a real in, inverted image of the same size as of the object is formed.
(a)what is the nature of the lens A&B
(b)what is the focal length of A&B
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Answer:
a.real image
b.less than 15
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