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Dual Nature of ...

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  • Question 1
    4 / -1

    A radio transmitter operates at a frequency of 880 kHz and a power of 10 kW. The number of photons emittedper second are

  • Question 2
    4 / -1

    A photo cell is receiving light from a source placed at a distance of 1 m. If the same source is to be placed at a distance of 2 m, then the ejected electron

  • Question 3
    4 / -1

    Among the following four spectral regions, the photons has the highest energy in

  • Question 4
    4 / -1

    Stopping potential for photoelectrons

  • Question 5
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    The maximum wavelength of radiation that can produce photoelectric effect in a certain metal is 200 nm. The maximum kinetic energy acquired by electron due to radiation of wavelength 100 nm will be

  • Question 6
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    The minimum energy required to remove an electron is called

  • Question 7
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    Assuming photoemission to take place, the factor by which the maximum velocity of the emitted photoelectrons changes when the wavelength of the incident radiation is increased four times is

  • Question 8
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    Work function of a metal is 2.51 eV. Its threshold frequency is

  • Question 9
    4 / -1

    Energy conversion in a photoelectric cell takes place from

  • Question 10
    4 / -1

    Which one of the following is true in photo electric emission?

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