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1. |
What do you understand by the focus of a lens? How will you find the focus of a convex lens? |
Answer» <p>focal point. n. 1 (Also called) principalfocus,focusthe point on the axis of alensor mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection</p><p>Convex lensesare thicker at the middle. Rays of light that pass through thelensare brought closer together (they converge). Aconvex lensis a converginglens. When parallel rays of light pass through aconvex lensthe refracted rays converge at one point called the principalfocus.</p> | |