Question

student is trying to measure the focal length of of a convex lens using a screen and a candle if x is the distance between the screen and the lens if will not get an image on the screen if this distance is​

Answer 1

Answer:

a) The student should use a convex lens because with the help of convex lens, he would be able to project image on the walls because convex lens will form a real image.

b) (i) In order to form a magnified image on the wall, the candle flame should be placed between F and 2F from the lens.

(ii) In order to form a diminished image on the wall, the candle flame should be placed at a distance greater than 2F from the lens.

solution follow me and like this answer