Physics-10th The Human Eye and the Colourful World CBSE Board 2024 Medium
A person suffering from presbyopia needs bifocal lens. If he needs two lens of power -4.0 dioptre and +2.0 di…
A person suffering from presbyopia needs bifocal lens. If he needs two lens of power dioptre and dioptre, which one of these two lenses is for the correction of distant vision and what is its focal length ?
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