1. 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
Answer: Option D
Solution:
Stock value is not used in the field of physics.
2. 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 on atmospheric oxygen.
C.Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere.
D.Lightning discharge in atmosphere.
Answer: Option A
Solution:
Radiocarbon is produced in the atmosphere as result of collision between fast neutrons and nitrogen
nuclei present in the atmosphere.
