Dioptre power of an concave lens of 10 cm focal length isPhysics A. 10 dioptre B. 10 dioptre C. 1 / 10 dioptre D. 1 / 10 dioptre
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
