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# The Power of a Lens is - 5d. Find Its Focal Length. and Name the Type of Lens. - ICSE Class 10 - Physics

ConceptTypes of Lenses (Converging and Diverging),

#### Question

The power of a lens is - 5D.

1) Find its focal length.

2) Name the type of lens.

#### Solution

1) Given the power of lens - -5D

focal length (f)

f = 1/d = 1/(-5) = (-1)/5 = -0.2 m

2) As power is negative lens is concave.

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Solution The Power of a Lens is - 5d. Find Its Focal Length. and Name the Type of Lens. Concept: Types of Lenses (Converging and Diverging),.
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