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Dual Nature of ...

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  • Question 1
    1 / -0.25

    Work function of a metal is the

  • Question 2
    1 / -0.25

    Photon has a charge of

  • Question 3
    1 / -0.25

    The work function of a photoelectric material is 3.32 eV. The threshold frequency will be equal to

  • Question 4
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    Energy of a photon of green light of wavelength 5500m  is (given: h = 6.62  ×10−34 Js−1 ) approximately

  • Question 5
    1 / -0.25

    Uniform electric and magnetic fields are produced pointing in the same direction. An electron is projected pointing in the same direction, then

  • Question 6
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    In which case is electron emission from a metal not known?

  • Question 7
    1 / -0.25

    Photons can be

  • Question 8
    1 / -0.25

    Given h = 6.6  ×10−34 joule sec, the momentum of each photon in a given radiation is 3.3  ×10−29 kg metre/sec. The frequency of radiation is

  • Question 9
    1 / -0.25

    If the work function of a material is 2eV, then minimum frequency of light required to emit photo-electrons is  

  • Question 10
    1 / -0.25

    In Thomson ’s method for finding specific charge of positive rays, the electric and magnetic fields are

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