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A signal emiited by an antenna form a ce...

A signal emiited by an antenna form a certain point can be received at another point of the surface in the form of

A

sky wave

B

ground wave

C

sea wave

D

Both (1) and (2)

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The correct Answer is:
D
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AAKASH SERIES-COMMUNICATION SYSTEM -LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - II) (Straight Objective & More than one Correct Answer Type Questions)
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  2. The weight of an object on the surface of the Earth is 40 N. Its weigh...

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  3. A signal emiited by an antenna form a certain point can be received at...

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  4. A radio station has two channels. One is AM at 1020kHz and the other i...

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  5. Broadcasting antennas are generally

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  6. If the audio signal is transmitted directly into space, the length of ...

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  7. A TV tower has a height of 75m. What is the maximum distance upto whic...

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  8. It a carrier wave of 1000 kHz is used to carry the signal, the length ...

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  9. A radar has a power of 1 Kw and is operating at a frequency of 10 GHz....

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  10. Then TV tower has a height of 100m. What is the maximum distance upto ...

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  11. Is it necessary for a transmitting antenna to be at the same height as...

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  12. A TV tower has a height of 75m. What is the maximum area upto which th...

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

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  14. A TV transmission tower has a height of 240m. Signals broadcast from t...

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  15. The maximum distance between the transmitting and receiving TV towers ...

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  16. A T.V. transmitting antenna is 128 m tall . If the receiving antenna i...

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  17. If height of transmitting tower increases by 21% then the area to be c...

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  18. The power of transmitter 19 kW. The power of the Carrier wave is, if t...

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  19. The power of a AM transmitter is 100 W. If the modulation index is 0.5...

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