Math, asked by nagarajrenuka09, 2 months ago

a student uses a lens of focal length 40 cm and another of -20. write the nature and power of each lens

Answers

Answered by sumantbawane

0

Answer:

don't know sorry anyone help her/him

Answered by ujjwalVishwakarma99

0

Step-by-step explanation:

First student has convex lens while the other has concave

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