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  1. In beta decay what is emitted?

  2. A.

     Electron

    B.

     Proton

    C.

     Neutron

    D.

     All of the above

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  3. Which one of the following ray has minimum wavelength?

  4. A.

     Gamma ray

    B.

     Cosmic ray

    C.

     Utraviolet ray

    D.

     X-rays

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  5. Nuclear Fission is caused by the impact of

  6. A.

     Electron

    B.

     Neutron

    C.

     Proton

    D.

     Deutron

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  7. Radiocarbon dating technique is used to estimate the age of

  8. A.

     Fossils

    B.

     Rocks

    C.

     Monuments

    D.

     Soil

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  9. Which of the following branch of Physics deal with study of Atomic Nuclei?

  10. A.

     Nuclear Physics

    B.

     Bio Physics

    C.

     Atomic Physics

    D.

     None of the above

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  11. The least penetrating power ray is

  12. A.

     Gamma rays

    B.

     Beta rays

    C.

     Alpha rays

    D.

     None of the above

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  13. Gamma rays are emissions that have

  14. A.

     Charge but no mass

    B.

     Neither mass nor charge

    C.

     Both mass and charge

    D.

     Mass but no charge

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  15. In the gamma decay of a nucleus

  16. A.

     The mass number of the nucleus changes whereas its atomic number does not change

    B.

     The mass number of the nucleus does not change whereas its atomic number changes

    C.

     Both the mass number and the atomic number of the nucleus change

    D.

     Neither the mass number nor the atomic number of the nucleus changes

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  17. Who among the following developed the technology of underground nuclear explosion ?

  18. A.

     Dr. Homi J. Bhabha

    B.

     Dr. Vikram Sarabhai

    C.

     Dr. Raja Ramanna

    D.

     Dr. P. K. Iyengar

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  19. A radioactive substance does not undergo any change (in mass or charge) during

  20. A.

     Gamma-emission

    B.

     Oxidation

    C.

     Alpha-emission

    D.

     Beta-emission

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