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Electromagnetic...

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  • Question 1
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    The intensity of a plane electromagnetic wave is proportional to

     

  • Question 2
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    According to Maxwell ’s equations

     

  • Question 3
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    The direction of propagation of an electromagnetic plane wave is

     

  • Question 4
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    Infrared waves are produced by

     

  • Question 5
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    Use the formula  λm  T = 0.29 cmK to obtain the characteristic temperature range for  λm =5 ×10-7 m

     

  • Question 6
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    Optical and radio telescopes are built on the ground, but X-ray Astronomy is possible only from satellites orbiting the earth because

     

  • Question 7
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    Plane electromagnetic waves are

     

  • Question 8
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    Without the concept of displacement current it is not possible to correctly apply Ampere ’s law on a path parallel to the plates of parallel plate capacitor C in

     

  • Question 9
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    Visible range of electromagnetic spectrum is

     

  • Question 10
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    State the part of the electromagnetic spectrum to which 21 cm (wavelength emitted by atomic hydrogen in interstellar space).belongs

     

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