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(A): The maximum range of coverage by th...

(A): The maximum range of coverage by the ground wave propagation is limited up to a few MHz.
(R): The attenuation of ground wave increases very rapidly with frequency.

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.

Text Solution

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The correct Answer is:
A
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The intensity of the ground waves decrease with increase of distance due to

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Knowledge Check

  • The maximum range of ground or surface wave propagation depends on

    A
    the frequency of the radiowaves only
    B
    power of the transmitter only
    C
    both (1) and (2)
    D
    none of the above
  • The range of ground wave transmission can be increased by

    A
    increasing the power of transmitter with the use of HF
    B
    increasing the power of transmitter with the use of VLF
    C
    decreasing the power and increasing the frequency of radio waves
    D
    decreasing both power and frequency of radio waves
  • The range of ground wave transmission can be increased by

    A
    increasing the power of transmitter with the use of HF
    B
    increasing the power of transmitter with the use of VLF
    C
    decreasing the power and increasing the frequency of radio waves
    D
    decreasing both power and frequency of radio waves
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    (A): The frequencies of incident, reflected and refracted waves of sound propagating from one medium to another medium are same. (R): The incident, reflected and refracted rays are coplanar.

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    Attenuation of ground waves is due to (a) Diffraction effect (b) Ratio waves induce currents in the ground because of the polarization