Question

. It is desired to obtain an erect image of an object using a concave mirror of focal length 20cm: a) what should be the range of distance of the object from the mirror b) will the image be bigger or smaller than the object c) draw a ray diagram to show the image formation (OR) (a) If the image formed by a lens is diminished in size and erect, for all positions of the object, what type of lens is it?(b) Name the point on the lens through which a ray of light passes undeviated.(c) An object is placed perpendicular to the principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 30 cm. Find (i) the position (ii) the magnification and (iii) the nature of the image formed.​

Answer 1

Answer:

jjskozkxkzp

z!sllwlalapzow