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Dual Nature of ...

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  • Question 1
    4 / -1

    A photon having energy 5.5 eV is incident on metal surface and emits photo electrons having maximum kinetic energy 0.4 eV. Then stopping potential of this electron is..................

  • Question 2
    4 / -1

    Frequency of photon having energy 66 eV is............ (h = 6.625 × 10–34 J.s)

  • Question 3
    4 / -1

    Kinetic energy of proton accelerated under p.d. 1 V will be................

  • Question 4
    4 / -1

    Which of the following phenomenon can not be explained by quantum theory of light ?

  • Question 5
    4 / -1

    What will be velocity of light of particle having mass double than its rest mass ?

  • Question 6
    4 / -1

    If de-Broglie wavelength of electron is increased by 1 % its momentum................

  • Question 7
    4 / -1

    With how much p.d. should an electron be accelerated, so that its de-Broglie wavelength is 0.4 Å

  • Question 8
    4 / -1

    de-Broglie wavelength of atom at T K absolute temperature will be....................

  • Question 9
    4 / -1

    Uncertainty of momentum of particle is 10–30 kg ms–1 so minimum uncertainty in its position is.........m.

  • Question 10
    4 / -1

    An electron is accelerated between two points having potential 20 V and 40 V, de- Broglic wavelength of electron is..................

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