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12th Standard English Medium Physics Subject Atomic and Nuclear physics Creative 1 Mark Questions with Solution Part - I Question Bank Software Jun-17 , 2021

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12th Standard English Medium Physics Subject Atomic and Nuclear physics Creative 1 Mark Questions with Solution Part - I

12th Standard English Medium Physics Subject Atomic and Nuclear physics Creative 1 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5

  1. The unit of Rydberg constant is ______________.

    (a)

    m

    (b)

    no unit

    (c)

    m-2

    (d)

    m-1

  2. A Coolidge tube operates at 18600 V. The maximum frequency of X-radiation emitted from it is ______.

    (a)

    4.5 x1018 Hz

    (b)

    45 x 1018 Hz

    (c)

    4.05 x 1018 Hz

    (d)

    45.5 x 1018 Hz

  3. The spectral series of hydrogen atom in UV region is called ____________.

    (a)

    balmer series

    (b)

    lyman series

    (c)

    paschan series

    (d)

    pfund series

  4. In a discharge tube, the source of positive rays is ________________.

    (a)

    cathode

    (b)

    anode

    (c)

    gas atoms present in the discharge tube

    (d)

    fluorescent screen

  5. The ionisation potential of hydrogen atom is ______________.

    (a)

    13.6eV

    (b)

    -13.6eV

    (c)

    13.6 V

    (d)

    -13.6 V

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