TNPSC Atomic and Nuclear Physics Objective Questions & Answers - 1

Question: 1

Atomic number Z represents number of

(A) protons or electrons

(B) neutrons

(C) protons

(D) electrons

Ans: A

protons or electrons

Question: 2

Nuclear charge depends upon

(A) electrons

(B) protons

(C) deuterons

(D) neutrons

Ans: B


Question: 3

Boiling point of liquid sodium is

(A) 200°C

(B) 500°C

(C) 750°C

(D) 1000°C

Ans: D


Question: 4

_____ is the source of stellar energy.

(A) Light

(B) Radiation

(C) Fusion

(D) Fission



Question: 5

Reactors that convert fertile material into fissile material are called

(A) breedor reactors

(B) research reactors

(C) production reactors

(D) power reactors

Ans: C

production reactors

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