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The height of transmitting antenna if th...

The height of transmitting antenna if the TV telecast is to cover a radius of 128 km is,

A

1560 m

B

1280 m

C

1050 m

D

79 m

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • The maximum distance between the transmitting and receiving TV towers is 65km . If the ratio of the heights of the TV transmitting tower to receiving tower is 36:49, the heights of the transmitting and receiving towers respectively are (radius of earth = 6400km)

    A
    51.2 m,80m
    B
    70.3m,95.7m
    C
    30m, 65m
    D
    25m.75m

  • (A): The area to be covered for T.V telecast is doubled, then the height of transmitting antenna will have to be halved (R): For T.V signal, population covered is equal to population density and area covered

    A
    Assertion and reason are true and reason is the correct explanation of assertion
    B
    Assertion and reason are true but reason is not correct explanation of assertion
    C
    Assertion is true but reason is false
    D
    Assertion is false but Reason is true.

  • (A) : The area to be covered for T.V. telecast is doubled, then the height of trans - mitting antenna will have to be doubled (R) : For T.V. signal propulation covered is equal to product of population density abd area covered

    A
    Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.
    B
    Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'.
    C
    A' is true abd 'R' false
    D
    A' is false and 'R' is false

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    (A) : Greater is the height of T.V. transmitting antenna, greater is its range. (R) : The range of T.V. transmitting antenna is proportional to square root of its height.

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    The height of a transmission antenna is 49m and that of the receiving antenna is 64m. What should be the maximum distance between them for line of sight transmission ?

    If height of a transmitting tower increases by 21% then the area to be covered increases by

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