Give the SI unit of power of lens. State whether the power of a converging lens is positive or negative.

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asked Jan 19, 2018 in Physics by Kundan kumar (49,132 points) 34 384 1027

Give the SI unit of power of lens. State whether the power of a converging lens is positive or negative.

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answered Jan 19, 2018 by Vikash Kumar (144,729 points) 8 11 21
selected Jan 19, 2018 by Kundan kumar
 
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The SI unit of power of a lens is dioptre.
The power of a converging lens is positive as f is +ve.

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