Question

1. A convex lens and a concave lens each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power of the combination in diopteters is
a) zero
b) infinity
c) 25
d) 50
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Answer 1

Answer:

Correct option is ( a )

zero

Answer 2

Answer Infinity Pls mark me brainlist