(i) Two convex lenses A and B have powers P_(1) and P_(2), respectively and P_(2) is greater than P_(1). Draw a ray diagram for each lens to show which one will be more converging. Give reason for your answer. (ii) A 2.0 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 10 cm. The distance of the object from the lens is 15 cm. Find the nature, position and size of the image. Also find its magnification.

(i) Two convex lenses A and B have powers P_(1) and P_(2), respectivel

1.	(i) Two convex lenses A and B have powers P_(1) and P_(2), respectively and P_(2) is greater than P_(1). Draw a ray diagram for each lens to show which one will be more converging. Give reason for your answer. (ii) A 2.0 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 10 cm. The distance of the object from the lens is 15 cm. Find the nature, position and size of the image. Also find its magnification.
Answer» <P> SOLUTION :(i) `P_(2)gtP_(1):.F_(2)lgF_(1)` B is more converging because rays are refracted more. (ii) `1/u=(-1)/15+1/10=1/30` or `v=+30cm` The IMAGE formed is real and inverted and on the other side of OPTICAL centre `m=(h.)/h=v/uimpliesm=-2` inverted and 4cm tall.