Radiocarbon is produced in the atmosphere as a result of

A. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. B. Action of ultraviolet light from the sun […]

Which of the following terms is not used in the field of physics?

A. Latent heat B. Nuclear fusion C. Refractive index D. Stock value

Nuclear sizes are expressed in a unit named

A. Fermi B. Angstrom C. Newton D. Tesla