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Dual Nature of ...

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  • Question 1
    4 / -1

    An electron is moving in electric field and magnetic field it will gain energy from

  • Question 2
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    Positive rays were discovered by

  • Question 3
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    A beam of cathode rays is subjected to crossed Electric (E) and Magnetic fields (B). The fields are adjusted such that the beam is not deflected. The specific chargeof the cathode rays is given by

  • Question 4
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    Positive rays are very identical to

  • Question 5
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    A charged oil drop of mass 2.5 × 10–7 kg is in space between the two plates, each of area 2 × 10–2 m2 of a parallel plate capacitor. When the upper plate has a charge of 5 × 10–7 C and the lower plate has an equal negative charge, the oil remains stationary. The charge of the oil drop is (Take g = 10 m /s2)

  • Question 6
    4 / -1

    A photon, an electron and a uranium nucleus all have the same wavelength. The one with the most energy

  • Question 7
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    A particle which has zero rest mass and non-zero energy and momentum, must travel with a speed

  • Question 8
    4 / -1

    A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3 × 106ms–1. The velocity of the particle is
    (Mass of electron = 9.1 × 10–31 kg)

  • Question 9
    4 / -1

    The de-Broglie wavelength λ associated with an kinetic energy E is given by the expression

  • Question 10
    4 / -1

    Dual nature of radiation is shown by

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