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Solution for The Optical Prescription for a Pair of Spectacles is : Right Eye : −3.50 D Left Eye : −4.00 D Are These Lenses Thinner at the Middle Or at the Edges? - CBSE Class 10 - Science

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Question

The optical prescription for a pair of spectacles is :
Right eye : −3.50 D
Left eye : −4.00 D 

Are these lenses thinner at the middle or at the edges?

Solution

 These lens are thinner at the middle because they are concave lens. Further, concave lens has negative power.

  Is there an error in this question or solution?

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Solution The Optical Prescription for a Pair of Spectacles is : Right Eye : −3.50 D Left Eye : −4.00 D Are These Lenses Thinner at the Middle Or at the Edges? Concept: Concept of Human Eye.
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