Prevention of Radioactive Pollution

Q.

What is radiation and give some examples?

Q. How many of the following statements is/are correct?
I. Safe disposal of radioactive wastes is an inherent problem with the use of nuclear energy
II. Accidental leakage of radioactive energy happened during the Bhopal Gas tragedy
III. Nuclear radiations can lower the rate of occurrence of mutations in our genomes
IV. Cancer is one of the most commonly caused disorders due to exposure to harmful radiations

1. 1
2. 2
3. 3
4. 4

Q. Which of the following materials can block radiation?

1. Concrete
2. Steel
3. All of the above
4. Lead

Q. Which of the following does not help reduce nuclear pollution.

1. Underground nuclear testing
2. Open disposal of nuclear waste
3. Underground disposal of radioactive waste
4. Closed cycle cooling systems in nuclear plants

Q. A blackbody does not

(a) emit radiation
(b) absorb radiation
(c) reflect radiation
(d) refract radiation

Q. Which of the following methods can be used to prevent radioactive pollution

1. Alternate source of energy
2. Safe storage of radioactive material
3. All of the above
4. Nuclear disarmament

Q. Which of the following methods can be used to prevent radioactive pollution

1. Nuclear disarmament
2. Alternate source of energy
3. Safe storage of radioactive material
4. All of the above

Q. Which of the following materials can block radiation?

1. Lead
2. Steel
3. Concrete
4. All of the above

Q. Assertion: Radioactive wastes are pre-treated and stored in containers 500 m below the Earth’s surface.

Reason: Nuclear radiation in low doses causes mutations and is lethal in high doses.

1. Both assertion and reason are true and the reason is the correct explanation of assertion
2. Both assertion and reason are true but the reason is not the correct explanation of assertion
3. Both assertion and reason are false
4. Assertion is true but reason is false