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Dual Nature of Radiation and Matter Test - 9
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Dual Nature of Radiation and Matter Test - 9

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  • Question 1/10
    4 / -1
    The de-Broglie wavelength of an electron moving with a velocity c / 2 (c = velocity of light in vacuum) is equal to the wavelength of a photon. The ratio of the kinetic energies of electron and photon is
  • Question 2/10
    4 / -1
    An electron and a proton are moving in the same direction with same kinetic energy. The ratio of the de-Broglie wavelength associated with these particles is
    Solutions

  • Question 3/10
    4 / -1
    An electron is accelerated under a potential difference of 182 V. The maximum velocity of electron will be (charge of an electron is 1.6 × 10-19 C and its mass is 9.1 × 10-31 kg)
    Solutions

  • Question 4/10
    4 / -1

  • Question 5/10
    4 / -1
    The de-Broglie wavelength of the electron in the ground state of the hydrogen atom is (radius of the first orbit of hydrogen atom = 0.53 Å)
  • Question 6/10
    4 / -1
    If an electron and a photon propagates in the form of waves having the same wavelength, it implies that they have the same
  • Question 7/10
    4 / -1
    If the linear momentum of a particle is 2.2 × 10 4 kg-ms-1, then what will be its de-Broglie wavelength ?
    (take, h = 6.6 × 10 -34 J-s)
    Solutions

  • Question 8/10
    4 / -1
    Which of the following figures represents the variation of particle momentum and associated de-Broglie wavelength ?
  • Question 9/10
    4 / -1
    Electrons with de-Broglie wavelength λ fall on the target in an X-ray tube. The cut-off wavelength of the emitted X-rays is
  • Question 10/10
    4 / -1
    Monochromatic light of wavelength 3000 Å is incident on a surface area 4 cm2. If intensity of light is 150 mW m-2 then, rate at which photons strike the target is
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