Physics The Human Eye and the Colourful World CBSE Board 2025 Medium
(i) What is hypermetropia? List its two possible causes. Name the type of lens used to correct this defect an…
- (i)What is hypermetropia ? List its two possible causes. Name the type of lens used to correct this defect and state its role in this case.
- (ii)A person suffering from presbyopia needs bifocal lens. If he needs two lenses of power D and D, which one of these two lenses is for the correction of distant vision and what is its focal length ?
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