Background radiation are

Radiations which originate from a radioactive compound in the earth’s crust

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Radiations which originate particles and rays entering the earth’s atmosphere are known as background radiations.

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Neither (a) nor (b) are correct

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Both (a) and (b) are correct

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Solution

The correct option is D
Both (a) and (b) are correct

Radiations which originate from a radioactive compound in the earth’s crust and from particles and rays entering the earth’s atmosphere are known as background radiations.

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Similar questions

γ

-rays are harmful radiations emitted by natural radioactive substances.
(a) Which are other radiations emitted from such substances.
(b) What is the unit of nuclear radiation?

Q. Choose the correct statement(s) regarding background radiations.

Q. Regarding the assertion and reason, choose the correct option.
Assertion [A]: Nuclear explosions majorly increase background radiation levels in the world.
Reason [R]: Nuclear explosion results in the release of radionuclides which are long lived and remain suspended in the atmosphere.

Question 1
The atmosphere of the earth is heated by radiations which are mainly:

(a) radiated by the sun
(b) re-radiated by land
(c) re-radiated by water
(d) re-radiated by land and water

Q. The atmosphere of the earth is heated by radiations which are mainly

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Background radiation are

The correct option is D Both (a) and (b) are correctRadiations which originate from a radioactive compound in the earth’s crust and from particles and rays entering the earth’s atmosphere are known as background radiations.

The correct option is D
Both (a) and (b) are correct

Radiations which originate from a radioactive compound in the earth’s crust and from particles and rays entering the earth’s atmosphere are known as background radiations.