set 2 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 3 EXERCISES
The following question based on nuclear physics and conductivity topic of general science mcq
(a) Ultra-violet
(b) X-ray
(c) Visible
(d) Infra-red
The correct answers to the above question in:
Answer: (b)
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Read more nuclear physics conductivity Based General Science Questions and Answers
Question : 1
The half-life of a radioactive element is 5 years, then the fraction of the radioactive substance that remains after 20 years is
a) 1/8
b) 1/4
c) 1/2
d) 1/16
Answer »Answer: (d)
Question : 2
Consider the following statements.
- The Nuclear Security Summits are periodically held under the aegis of the United Nations.
- The International Panel on Fissile Materials is an organ of International Atomic Energy Agency.
a) Both 1 and 2
b) Only 2
c) Only 1
d) Neither 1 nor 2
Answer »Answer: (d)
Question : 3
Hydrogen bomb is based on the principle of
a) Controlled fission reaction
b) Uncontrolled fusion reaction
c) Controlled fusion reaction
d) Uncontrolled fission reaction
Answer »Answer: (b)
Question : 4
Photovoltaic cells are
a) Sulphur cells
b) Thermal cells
c) Solar cells
d) Molar cells
Answer »Answer: (c)
Question : 5
Assertion (A):
Copper rods are generally preferred to iron rods for making lightning conductors.
Reason (R):
Copper is better conductor of electricity than iron and is not easily oxidized under atmospheric conditions.
Code
a) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
b) (A) is true, but (R) is false
c) Both (A) and (R) are true and (R) is the correct explanation of (A)
d) (A) is false, but (R) is true
Answer »Answer: (c)
Question : 6
The Nuclear doctrine of India contains
a) Minimum Credible deterrence
b) Unilateral moratorium
c) No first use
d) All of the above
Answer »Answer: (d)
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