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Physics Test - ...

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  • Question 1
    5 / -1

    Probability of backward scattering (i.e., scattering of α -particles at angles greater than 90∘) predicted by Thomson’s model is

  • Question 2
    5 / -1

    In Geiger-Marsden experiment very small deflection of the beam was expected because

  • Question 3
    5 / -1

    The density of nuclear matter is:

  • Question 4
    5 / -1

    The radius of a nucleus is directly proportional to (A=mass number)

  • Question 5
    5 / -1

    The volume of atom in comparison of volume of nucleus is of the order of​

  • Question 6
    5 / -1

    Photoelectric effect is possible

  • Question 7
    5 / -1

    If the voltage across the electrodes of a cathode ray tube is 500 volts then energy gained by the electrons is

  • Question 8
    5 / -1

    If work function of a metal plate is negligible then the K.E.of the photoelectrons emitted when radiations of 1000 Â are incident on the metal surface is

  • Question 9
    5 / -1

    A semiconductor is formed by:

  • Question 10
    5 / -1

    In a semiconductor, current conduction is due to:

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