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प्रश्न
Positron is an ________.
उत्तर
Positron is an antiparticle of electron.
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संबंधित प्रश्न
Artificial radioactivity was discovered by ______.
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
Abbreviation of ICRP______.
_______ is used to measure exposure rate of radiation in humans.
The radio isotope of ________ helps to increase the productivity of crops.
Use the analogy to fill in the blank
Spontaneous process: Natural Radioactivity, Induced process: _______.
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.
If A is a radioactive element which emits an α - particle and produces 104Rf 259. Write the atomic number and mass number of the element A
Mr. Ramu is working as an X-ray technician in a hospital. But, he does not wear the lead aprons. What suggestion will you give to Mr. Ramu?
