A lens forms the image of an object placed at a distance 25cm from it, at a distance of 60cm in front of it. Find its focal length Share with your friends Share 0 Bhavika Jangid answered this Hope this helps 1 View Full Answer Antra Sharma answered this Lens formula : 1/f=1/v-1/u 1/f =1/60-1/25 1/f= 5/300 - 12/300 1/f = - 7/300 f = - 300/7 -1 Antra Sharma answered this 1/f =1/v-1/u 1/f= 1/60-(-1/25) 1/f =5/300 + 12/300 1/f =17/300 f= 300/17 0
