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2 C 20226

14. List out the confinement methods.
15. Comment on the saturation property of nuclear forces.
16. State the properties of Beta rays.
17. Give the quark combination of a proton.
(7 x 2 =14 marks)
Section C (Paragraph type)

Answer in a paragraph of about half a page to one page.
Answer any five questions.
Each question carries 4 marks.

18. Discuss about radio-carbon dating and mention its application.
19. Write a short note on strangeness.
20. Discuss about meson theory of nuclear forces.
21. Give abrief account on nuclear fission and its important applications.
22. Explain the working principle of electron synchrotron.
23. Explain geomagnetic effect in cosmic rays.
24. Explain the term stellar parallax and the units of stellar distances.
(5 x 4 = 20 marks)
Section D (Problems)
(Problems write all relevant formulas, all important steps carry separate marks.)

Answer any four questions.

Each question carries 4 marks.

25. Consider a single helium nucleus formed by the fusion of two deuterium nuclei. Mass of
धिः = 2.014102u ; mass of Het = 4,002604u. Find out the energy released in fusion.

26. Explain Carbon-Nitrogen and proton-proton cycle in sun.

27. Determine whether the following reactions are allowed or forbidden :

0) றற றார்‌,
Gi) ‏ص ثم جد جردم‎

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