Suate the lens formula
State whether s. vand fure positive or negative, when
(a) The lens is convex and the image formed is real.
(b) The lens is convex and the image formed is virtual
c) The lens is concave
Answers
Explanation:
Convex (converging) lenses can form either real or virtual images (cases 1 and 2, respectively), whereas concave (diverging) lenses can form only virtual images (always case 3). Real images are always inverted, but they can be either larger or smaller than the object.
Explanation:
HEY MATE
A.) When an object is placed at infinity, the real image is formed at the focus. The size of the image is much smaller than that of the object.
B.)The image formed by a convex lens is observed to be virtual, erect and larger than the object. Then the position of the object should beIf the object is placed between the pole and focus, then the image formed will be virtual, erect and enlarged.
C.)concave lens is a lens that possesses at least one surface that curves inwards. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia).