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प्रश्न
_______ is used to measure exposure rate of radiation in humans.
रिकाम्या जागा भरा
उत्तर
Roentgen is used to measure exposure rate of radiation in humans.
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Types of Radioactivity
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संबंधित प्रश्न
Man-made radioactivity is also known as _______.
Artificial radioactivity was discovered by ______.
Gamma radiations are dangerous because
________ aprons are used to protect us from gamma radiations.
Positron is an ________.
The radio isotope of ________ helps to increase the productivity of crops.
If the radiation exposure is 100 R, it may cause ______.
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.
Who discovered natural radioactivity?
Cell phone towers should be placed far away from the residential area – why?
