10th Standard English Medium Science Subject Nuclear Physics Creative 1 Mark Questions with Solution Part - II

10th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. Fusion reaction takes place at high temp.

    (a)

    atoms are ionised

    (b)

    molecules break up

    (c)

    nuclei break up

    (d)

    to overcome repulsion between nuclei

  2. The main source of stellar energy is
    (i) fission reactors
    (ii) fusion reaction
    (iii) chemical reaction
    (iv) thermonuclear reactions

    (a)

    (i) is correct

    (b)

    (i) & (ii) are correct

    (c)

    (i) & (iv) are correct

    (d)

    (ii) & (iv) are correct

  3. A chain reaction is continuous due to

    (a)

    large mass defect

    (b)

    large energy

    (c)

    production of more neutrons in fission

    (d)

    None of these

  4. Atomic nucleus was discovered by _______

    (a)

    Rutherford

    (b)

    Newton

    (c)

    Einstein

    (d)

    Nobel

  5. Nucleons are made of ________.

    (a)

    atoms

    (b)

    electrons and protons

    (c)

    electrons and neutrons

    (d)

    protons and neutrons

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