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If there were no atmosphere, the average...

If there were no atmosphere, the average temperature on the surface of earth would be :-

A

Lower

B

Higher

C

Same as now

D

`0^(@)C`

Text Solution

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The correct Answer is:
A
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ALLEN -SEMICONDUCTORS-Part-3(Exercise-1)
  1. Long distance short-wave radio broadcasting uses

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  2. The power in a two-wire transmission line travels :-

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  3. For television broadcasting, the frequency employed is normally

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

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  5. The process of superimposing signal frequency (i.e. audio wave) on the...

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  6. In an amplitude modulated wave for audio-frequency of 500Hz, the appro...

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

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  8. The T.V. transmission tower in Delhi has a height of 240 m. The distan...

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

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

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  11. For sky wave propagation of a 10 MHz signal, what should be the minimu...

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  12. In short wave communication waves of which of the following frequeunci...

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  13. For sky wave propagation of a 10 MHz signal, what should be the minimu...

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  14. In frequency modulation

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  15. Range of frequencies allotted for commercial FM radio broadcast is

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  16. Sound produced by a tining fork is a sort of :-

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  17. The space waves which are affected seriously by atmospheric condition ...

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  18. Which of the following is not transducer?

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  19. A anetenna is of height 500 m. What will be its range (Radio of the ea...

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  20. In amplitude modulation determine the total maximum transmitted power,...

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