Which of the following radiations are suitable for the treatment of an infection in the interior of the body ?Physics A. α-rays B. β-rays C. γ-rays D. X-rays
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