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Calculate the frequency in MHz of a radi...

Calculate the frequency in MHz of a radio wave of wavelength 250 m. Remember that the speed of all EM wavesin vacum is `B_0 = 5 xx 10^-7` T What is the amplitude of the electric field part of the wave?

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CHETANA PUBLICATION-ELECTROMAGNETIC WAVES AND COMMUNICATON SYSTEM-EXERCISE
  1. Write the formula for velocity of EM waves in vacuum and in given medi...

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

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

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

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

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

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

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

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  9. Calculate the velocity of EM waves in vaccum.

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

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

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

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

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

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  15. What do you mean by EM spectrum?

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  16. State the different types of EM waves in the order of decreasing wavel...

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  17. Why are microwaves used in radar?

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  18. Why can light waves travel in vacuum whereas sound wave cannot?

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  19. Name the most harmful radiation entering the earth's atmosphere from t...

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  20. What are radio waves? Give its two uses

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