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Frequencies in the UHF range normally pr...

Frequencies in the UHF range normally propagate by means of

A

Ground waves

B

Sky waves

C

Surface waves

D

Space waves

Text Solution

Verified by Experts

The correct Answer is:
D
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ALLEN-SEMICONDUCTORS-Part-3(Exercise-1)
  1. Modulation is not used to :-

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  2. AM is used for broadcasting because

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  3. Frequencies in the UHF range normally propagate by means of

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  4. Digital signals (i) do not provide a continuous set of values. (ii...

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  5. An 'antenna' is

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  6. Long distance short-wave radio broadcasting uses

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  7. The power in a two-wire transmission line travels :- A. Inside the co...

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  8. For television broadcasting the frequency employed is normally

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  9. The sound waves after being converted into electrical waves are not tr...

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  10. The process of superimposing signal frequency (i.e., audio wave) on th...

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  11. In an amplitude modulated wave for audio frequency of 500 cycles/secon...

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  12. If there were no atmosphere, the average temperature on the surface of...

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  13. The T.V. transmission tower in Delhi has a height of 240m. The distanc...

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  14. Which of the following is used to produce radio waves of constant ampl...

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  15. The maximum distance upto which TV transmission from a TV tower of hei...

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  16. For sky wave propagation of a 10MHz signal, what should be the minimum...

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  17. In short wave communication, waves of which of the following frequenc...

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  18. For sky wave propagation of a 10MHz signal, what should be the minimum...

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  19. In frequency modulation

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  20. Range of frequencies alotted for commerical FM radio broad cast is

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