Define power of a lens and write its SI unit. Name the type of lenswho

1.	Define power of a lens and write its SI unit. Name the type of lenswhose power is negative.
Answer» ong>Answer: The degree of CONVERGENCE or divergence of a lens is CALLED power of the lens. Its si unit is dioptre. CONCAVE lens has negative power Explanation: Hope it HELPS you

Define power of a lens and write its SI unit. Name the type of lenswhose power is negative.

Answer»

ong>Answer:

The degree of CONVERGENCE or divergence of a lens is CALLED power of the lens. Its si unit is dioptre. CONCAVE lens has negative power

Explanation:

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Define power of a lens and write its SI unit. Name the type of lenswhose power is negative.​

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Define power of a lens and write its SI unit. Name the type of lenswhose power is negative.