Question

A candle 5cm in size is placed perpendicular to the principal axis of a convex lens of focal length20 cm. the distance of the candle from the lens is 30cm
(a) By calculation, determine the position and size of the image formed.
(b) Also calculate the power of the lens.
(c) How will the focal length of the above lens be affected on cutting it into two equal halves
along the principal axis? What change can be observed in the formation of image in this case?​

Answer 1

Answer:

give any choice for this question