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प्रश्न
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?
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उत्तर
X – rays have a destructive effect on living tissue. When the human body is exposed to X – rays, it causes redness of the skin, sores, and serious injuries to the tissues and glands. They destroy the white corpuscles of the blood. If you don’t wear lead aprons these kinds of diseases formed in your body. In my suggestion, you must wear lead aprons.
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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______.
Match: III
| a. | Soddy Fajan | Natural radioactivity |
| b. | Irene Curie | Displacement law |
| c. | Henry Bequerel | Mass energy equivalence |
| d. | Albert Einstein | Artificial Radioactivity |
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
Give the SI unit of radioactivity.
