Lakhmir Singh & Manjit Kaur - Physics

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Q. 475.0( 1 Vote )

In a certain murder investigation, it was important to discover whether the victim was long-sighted or short-sighted. How could a detective decide by examining his spectacles?

Class 10th Lakhmir Singh & Manjit Kaur - Physics 6. The Human Eye and The Colourful World

Answer :

The examination of the spectacles can be done by determining the type of lens used in it. If spectacle lenses are convex, the person was long-sighted but if spectacle lenses are concave, then the person was short-sighted.

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