Physics, asked by ajaiantonimjamescbse, 2 months ago

b)i)What is meant by power of lens? Write the SI unit.
ii) A student uses a lens of focal length 40 cm and another of (-
20) cm. Write the nature and power of each lens.

Answers

Answered by sahasasaha14

0

Answer:

Explanation:

Ok Why Are You giving 50 Points

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