Find the power of a concave lens of focal length 2 m. - Science

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Find the power of a concave lens of focal length 2 m.

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Solution

Focal length of concave lens, f = 2 mPower of lens, P= 1/f = 1/(-2)= -0.5D

Concept: Power of a Lens
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Chapter 10: Light – Reflection and Refraction - Intext Questions [Page 184]

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NCERT Science Class 10
Chapter 10 Light – Reflection and Refraction
Intext Questions | Q 3 | Page 184

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