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Dual Nature of ...

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  • Question 1
    4 / -1

    Which of the following event, support the quantum nature of light ?

  • Question 2
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    The photons in a radiowave of wavelength 3 × 104 cm have energy

  • Question 3
    4 / -1

    The average energy of the Planck oscillator is

  • Question 4
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    In photoelectric effect, if the intensity of light is doubled, then maximum kinetic energy of photoelectrons will become

  • Question 5
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    The maximum kinetic energy of emitted electrons in a photoelectric effect does not depend upon

  • Question 6
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    When intensity of incident light increases

  • Question 7
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    In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum

  • Question 8
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    A light having wavelength 300 nm falls on a metal surface. Work function of metal is 2.54 eV. What is stopping potential ?

  • Question 9
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    The time taken by a photoelectron to come out after the photon strikes is approximately

  • Question 10
    4 / -1

    Light of frequency v falls on material of threshold frequency v0 . Maximum kinetic energy of emitted electron is proportional to

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