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प्रश्न
Mark the correct choice as
- Assertion: In a β - decay, the neutron number decreases by one.
- Reason: In β - decay atomic number increases by one.
विकल्प
If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
Assertion is true, but the reason is false.
Assertion is false, but the reason is true.
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उत्तर
The assertion is false, but the reason is true.
Explanation: In β – decay there is no change in the mass number of the daughter nucleus but the atomic number increases by one.
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संबंधित प्रश्न
Man-made radioactivity is also known as _______.
In which of the following, no change in mass number of the daughter nuclei takes place
- α decay
- β decay
- γ decay
- neutron decay
Gamma radiations are dangerous because
Positron is an ________.
Abbreviation of ICRP______.
_______ is used to measure exposure rate of radiation in humans.
The radio isotope of ________ helps to increase the productivity of crops.
If the radiation exposure is 100 R, it may cause ______.
Give the SI unit of radioactivity.
Cell phone towers should be placed far away from the residential area – why?
