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Electromagnetic...

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  • Question 1
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  • Question 2
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    Light with an energy flux of w/m3 or Wm–3 falls on a non-reflecting surface at normal to surface. If the surface has an area of 20m2. The average force exerted on the surface during 30 minutes is ______________

  • Question 3
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    Energy density of an electromagnetic wave of intensity 0.02 Wm–2 is ________________

  • Question 4
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    The waves used in communication are generally called

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  • Question 7
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    The electric and magnetic field of an electromagnetic wave are

  • Question 8
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    The direction of electric and magnetic vector for an electromagnetic wave travelling along X-axis are shown in fig. A and B then

  • Question 9
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  • Question 10
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