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Electromagnetic Waves Test - 7
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Electromagnetic Waves Test - 7
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  • Question 1/10
    4 / -1

    Consider the following statements about electromagnetic radiations; All of them
    (i) have energy
    (ii) exert pressure on an object
    (iii) have the same momentum
    Of these statements
  • Question 2/10
    4 / -1

    Television signals reach us only through the ground waves. The range R related with the transmitter height h is in proportion to
    Solutions

  • Question 3/10
    4 / -1

    In T.V. broadcasting both picture and sound are transmitted simultaneously.
    In this
  • Question 4/10
    4 / -1

    Which of the following radiations has the least wavelength?
  • Question 5/10
    4 / -1

    Sodium lamps are used in foggy conditions because
  • Question 6/10
    4 / -1

    The region of the atmosphere above troposphere is known as
  • Question 7/10
    4 / -1

    If c is the speed of electromagnetic waves in vacuum, its speed v in a medium of dielectric constant K and relative permeability μr is
    Solutions

  • Question 8/10
    4 / -1

    The electric field ( in NC-1) in an electromagnetic wave is given by E = 50 sin ω (t-x/c) The energy stored in a cylinder of crossection 10 cm2 and length 100 cm along the x-axis will be
    Solutions

  • Question 9/10
    4 / -1

    Who produced the electromagnetic waves first ?
  • Question 10/10
    4 / -1

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