Negative power indicates that it is a ___.

concave lens

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convex lens

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combination two convex lenses

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combination three convex lenses

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Solution

The correct option is A
concave lens

$P o w e r = \frac{1}{F o c a l l e n g t h}$
$\Rightarrow$ Since concave lens have negative focal length, power of concave lens is also negative.

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Negative power indicates that it is a ___.

The correct option is A concave lens Power=1Focal length ⇒ Since concave lens have negative focal length, power of concave lens is also negative.

The correct option is A
concave lens

$P o w e r = \frac{1}{F o c a l l e n g t h}$
$\Rightarrow$ Since concave lens have negative focal length, power of concave lens is also negative.