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Dual Nature of ...

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  • Question 1
    4 / -1

    Calculate the energy of a photon of radian wavelength 6000 Å in eV.

  • Question 2
    4 / -1

  • Question 3
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    The work function of metal is 5.3 eV. What is threshold frequency ?

  • Question 4
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    An electron moving with velocity 0.6c, then de-brogly wavelength associated with is...........
    (rest mars of electron, m0 = 9.1 × 10–31 K/s, h = 6.63 × 10–31 Js)

  • Question 5
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    In an experiment to determine photoelectric characteristics for a metal the intensity of radiation is kept constant. St rating with threshold frequency. Now, frequency of incident radiation is increased. It is observed that ........

  • Question 6
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    Valance electrons in metals .......

  • Question 7
    4 / -1

    Rayleigh and jeans regarded the black body radiations as

  • Question 8
    4 / -1

    According to Rayleigh and Jeans the black body radiation in the cavity is system of

  • Question 9
    4 / -1

  • Question 10
    4 / -1

    Radius of a nucleus 2 × 10–15 m . If we imagine an electron inside the nucleus then energy of electron will be = ......... MeV.
    me = 9.1 × 10–31 kg, h = 6.6 × 10–34 Js

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