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The T.V. transmission tower in Delhi has...

The T.V. transmission tower in Delhi has a height of 240 m. The distance up to which the broadcast can be received, (taking the radius of earth to be `6.4xx10^(6)m)` is

A

100km

B

60km

C

55km

D

50km

Text Solution

Verified by Experts

The correct Answer is:
C
`h=(d)^(2)/(2R)`,`d^(2)=240xx2xx6.4xx10^(6)`m, d=55km,`therefore` (C)
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FIITJEE-SEMICONDUCTOR AND DEVICE-SOLVED PROBLEMS Objective: Level-I
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  2. For television broadcasting, the frequency employed is normally

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  3. An 'antenna' is:

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  4. The characteristic impedance of a coaxial cable is of the order of

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  5. Long distance short-wave radio broadcasting uses

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  6. Propogation constant of a transmission line is :

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

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  8. The number of telephone conversations by a fibre of band width 40MHz, ...

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  9. Distance of propogation from antenna of height 20m is

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  10. If critical frquency for ionosphere is 30MHz.Calculate the maximum fre...

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  11. The velocity of electromagnetic waves in a dieclectric medium (epsilo...

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  12. For television broadcasting, the frequency employed is normally.

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  13. An antenna is :

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  14. The characteristic impedance of a co-axial cableis of the order of:

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  15. Long distance short - wave radio frequency broadcasting uses:

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  16. Propogation constant of a transmission line is :

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  17. The T.V.Transmission tower in Delhi has a height of 240m. The distnace...

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  18. The number of telephone conversations by a fibre of band width 40MHz, ...

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  19. Distance of propogation from antenna of height 20m is

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  20. If critical frquency for ionosphere is 30MHz.Calculate the maximum fre...

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