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Can we produce a pure electric or magnet...

Can we produce a pure electric or magnetic waves in space? Why?

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CHETANA PUBLICATION-ELECTROMAGNETIC WAVES AND COMMUNICATON SYSTEM-EXERCISE
  1. What are the direction of electric field, magnetic field and direction...

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  2. What is the source of EM waves?

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  3. Can we produce a pure electric or magnetic waves in space? Why?

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  4. How are EM waves produced?

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  5. Does an ordinary electric lamp emit EM waves?

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  6. State the mathematical expression for electric field and magnetic fiel...

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  7. State characteristics of an EM wave.

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  8. Write the formula for velocity of EM waves in vacuum and in given medi...

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  9. Write the formula for intensity of a wave in EM waves.

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  10. Calculate the frequency in MHz of a radio wave of wavelength 250 m. Re...

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  11. Calculate the wavelength in nm of an X-ray wave of frequency 2 xx 10^1...

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  12. The speed of light is 3 xx 10^8m//sec. Calculate the frequency of red ...

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  13. Calculate the wavelength of a microwave of frequency 8 GHz

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  14. In a EM wave the electric field oscillates sinusoidally at a frequency...

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  15. The amplitude of the magnetic field part of a harmonic EM wave in vacu...

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  16. Calculate the velocity of EM waves in vaccum.

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  17. In free space, an EM wave of frequency 28 MHz travels along the x-dire...

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  18. A beam of red light has an amplitude 2.5 times the amplitude of second...

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  19. The magnetic field of an EM wave travelling along X-axis is vecB = 4 x...

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  20. For an EM wave propagations along x direction, the magnetic field osci...

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