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Wave Optics Test - 49
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Wave Optics Test - 49
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  • Question 1/10
    4 / -1
    The rms value of the electric field of the light coming from the Sun is 720 N/C. The average total energy density of the electromagnetic wave is
    Solutions

  • Question 2/10
    4 / -1
    A new system of units is evolved in which the values of µ0 and ϵ0 are 2 and 8 respectively. Then the speed of light in this system will be
    Solutions

  • Question 3/10
    4 / -1
    The magnetic field amplitude of an electromagnetic wave is 2 × 10–7 T. It\'s electric field amplitude if the wave is travelling in free space is
    Solutions

  • Question 4/10
    4 / -1
    Electromagnetic waves can be deflected by
  • Question 5/10
    4 / -1
    The dielectric constant of air is 1.006. The speed of electromagnetic wave travelling in air a × 108ms–1, where a is about
    Solutions

  • Question 6/10
    4 / -1
    The wavelength of the matter waves is independent of
    Solutions

  • Question 7/10
    4 / -1
    All components of the electromagnetic spectrum in vacuum have the same
    Solutions

  • Question 8/10
    4 / -1
    The electromagnetic theory of light failed to explain
  • Question 9/10
    4 / -1
    An electromagnetic wave propagating along north has its electric field vector upwards. Its magnetic field vector point towards
  • Question 10/10
    4 / -1
    Pick out the correct statement in the propagation of electromagnetic waves for communication purposes
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