Question

A student focused the image of the candle flame on a white screen using a convex lens .He noted down the positions of the candle flame , screen and the lens as given below position of candle flame = 12.6 cm position of the lens= 51.8 cm position of the screen = 91cm Q 1 find the focal length of the convex lens. Q 2 Find the position of the image of the candle flame if it is shifted towards the lens at a position of 32.2 cm Q3 State the nature of the image formned if the candle flame is further shifetd towards the lens

Answer 1

Answer:

student focused the image of a candle flame on a white screen using a convex lens. He noted down the positions of the candle flame, screen and the lens as given below:

Position of the candle flame = 12.0cm

Position of the lens= 50.0 cm

Position of the screen=88.0 cm

(i) the focal length of the convex lens.

(ii) Find the position of the image of the candle flame if it is shifted towards the lens at a position of 31.0 cm.

(iii) State the nature of the image formed if the candle flame is further shifted towards the lens