The minimum distance between an object and its real image in a convex lens isPhysics A. 2 f B. 2.5 f C. 3f D. 4f
Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60km/h and the other is moving at 40km/h mph. In how many hours will they meet?
The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is
