Class 10ScienceThe Human Eye and the Colourful WorldMix Examples - The Human Eye and the Colourful World
Easy$A$ bifocal lens consists of both concave and convex lenses. Bifocal lenses are required by a person suffering from $.............$.
$P$ - Myopia (nearsightedness)
$Q$ - Hypermetropia (farsightedness)
$R$ - Presbyopia
$P$ - Myopia (nearsightedness)
$Q$ - Hypermetropia (farsightedness)
$R$ - Presbyopia
- AOnly $Q$
- BOnly $R$
- COnly $P$
- D$P$ and $Q$ both
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