Do defects have benefits?
Classical Mechanics
Level
2
Three men having normal vision, hypermetropia and myopia repetitively, jumps into lake for finding a diamond ring. Who had a better chance of spotting the ring?
Note:
- All the three men have their naked eyes right expose to water.
Man having hypermetropia.
Man having normal vision.
Man having myopia.
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1 solution
As you know water bends light rays away from normal it is a great help for myopia. The defect myopia means light rays converge before retina so they can see near but cannot see distinct things. So, when they see inside the water the water diverges the light rays and hence the light rays now exactly converge at retina inside the eyes. This is the theory behind concave lens used for myopia.
(P.S : I am having high myopia. My right eye has -9 D and my left eye has -6.25 D)