Correct option is D
Correct answer is D
Explanation
Starting from a sample of pure radioactive element A, N = N0 exp(-λt)
A radioactive element A. Starting from a sample of pure element A, which one of the following graphs correctly shows the number of A atoms N_A with time t? T is the half-life of element A.
Correct answer is D
Explanation
Starting from a sample of pure radioactive element A, N = N0 exp(-λt)
A convex lens forms an image of an object placed 30 cm away. The image is formed at 60 cm on the other side. The magnification is:
If the acceleration of a body is halved and mass remains constant, the force will
A convex lens forms an image of an object placed 30 cm away. The image is formed at 60 cm on the other side. The magnification is:
If the acceleration of a body is halved and mass remains constant, the force will
Suggested Test Series
Suggested Test Series