#### Nuclear Physics Two Marks Questions

10th Standard

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Science

Time : 00:45:00 Hrs
Total Marks : 20
10 x 2 = 20
1. Write any two elements which are used for inducing radioactivity?

2. If A is a radioactive element which emits an $\alpha$ - particle and produces 104Rf 259. Write the atomic number and mass number of the element A.

3. Which hazardous radiation is the cause for the genetic disease?

4. When and where was the first nuclear reactor built?

5. Which material protects us from radiation?

6. What is meant by mass defect?

7. Write the conditions necessary for nuclear fusion.

8. How does the repulsive force between the two deuterium atoms overcome during nuclei fusion process?

9. What do you mean by Q value of nuclear reaction?

10. What is meant by critical size?