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Solution for The Focal Length of a Lens is +150 Mm. What Kind of Lens is It and What is Its Power? - CBSE Class 10 - Science

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Question

The focal length of a lens is +150 mm. What kind of lens is it and what is its power? 

Solution

Power of a lens is given by:  

Power (P)  `=1/f` 

`p='1/(150xx10^-3)=6.67 D` 

Since the power is positive, the lens is convex in nature. 

  Is there an error in this question or solution?

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Solution The Focal Length of a Lens is +150 Mm. What Kind of Lens is It and What is Its Power? Concept: Refraction at Spherical Surfaces and by Lenses - Power of a Lens.
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