Power of which lens is negative ? Also g...

Power of which lens is negative ? Also give the relation between focal length and power of a lens

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### Step-by-Step Solution: 1. **Understanding Power of a Lens**: The power of a lens (P) is defined as the ability of the lens to converge or diverge light. It is measured in diopters (D). 2. **Relation Between Power and Focal Length**: The power of a lens is inversely related to its focal length (F). The formula is given by: \[ ...

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The unit of focal power of a lens is

Watt

Horse power

Dioptre

Lux

How power of the lens is related to focal length of the lens?

Directly proportional to f

Directly proportional to `(1)/(f)`

Directly proportional to `sqrt f`

Directly proportional to ` (1)/(f ^(2))`

How power of the lens in related to focal length of the lens ?

Directly proportional to f

Directly proportional to `(1)/(f)`

Directly propotional to `sqrt(f)`

Directly proportional to `(1)/(f^(2))`