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What is demodulation? Why is satellite c...

What is demodulation? Why is satellite communication necessary for TV signal?

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R G PUBLICATION-ELECTROMAGNETIC WAVES-EXERCISE
  1. What is amplitude modulation? Explain with diagram.

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  2. Calculate the peak value of electric and magnetic field produced by a ...

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  3. What is demodulation? Why is satellite communication necessary for TV ...

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  4. What is the source of emission of r-rays.

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  5. Obtain an expression for velocity of electromagnetic wave.

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  6. How are carrier wave produced?

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  7. Discuss the mode of propagation of radio wave in atmosphere.

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  8. Write the classification of electromagnetic waves according to frequen...

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  9. Write a short note on ultraviolet rays. Describe how it in large quant...

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  10. Find the wavelength of elecltromagnetic waves of frequency 5xx10^(19)H...

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  11. Give two characteristics of electromagnetic waves. Write the expressio...

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  12. The electric field part of an electromagnetic wave is vecE = {(3.1N/...

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  13. The electric field part of an electromagnetic wave is vecE = {(3.1N/...

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  14. The electric field part of an electromagnetic wave is vecE = {(3.1N/...

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  15. Briefly describe the work of Maxwell and Hertz in the field of electro...

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  16. Give a brief of electromagnetic wave. Write two examples of it.

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  17. Write the characteristics of an electromagnetic.

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  18. Write one use of each of the following Microwaves

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  19. Write one use of each of the following U.V. rays

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  20. Write one use of each of the following Gamma rays

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