Saved Bookmarks
| 1. |
What do you understand by the focus of a lens? How will you find the focus of a convex lens? |
|
Answer» 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 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. |
|