Question

an object placed in front of convex lens at a distance of 25 cm on principal axis the focal length of lens is 15 c m what distance the image is formed and write the nature and size of the image length of the object is 4 cm

Answer 1

Answer:

Explanation:

1/v - 1/u = 1/f

1/v - 1/25 = 1/15

25 - v/25v = 1/15

375 - 15v = 25v

375 = 25v + 15v

375 = 40v

v = 375/40

v = 9.375 cm