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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? - 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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APPEARS IN

 Lakhmir Singh Solution for Physics for Class 10 (2018 (Latest))
Chapter 5: Refraction of Light
Q: 39.1 | Page no. 263
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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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