# The Power of a Lens is +2.0d. Its Focal Length Should Be : (A) 100 Cm (B) 50 Cm (C) 25 Cm (D) 40 Cm - Science

The power of a lens is +2.0D. Its focal length should be :
(a) 100 cm
(b) 50 cm
(c) 25 cm
(d) 40 cm

#### Solution

50 cm

Focal length =1/"power"=1/2.0=0.5m=50cm

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#### APPEARS IN

Lakhmir Singh Class 10 Physics (Science)
Chapter 5 Refraction of Light
Q 34 | Page 262