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Give answer! To double the covering range of a TV transmittion tower, its height should be multiplied by :

 To double the covering range of a TV transmittion tower, its height should be multiplied by : 

  • Option 1)

    \frac{1}{\sqrt{2}}

  • Option 2)

    \sqrt{2}

  • Option 3)

     4

  • Option 4)

    2

Answers (1)
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A admin

 

Range of transmitting antenna -

d_{T}= \sqrt{2h_{T}R}


 

- wherein

h_{T}= height of antenna

R= Radius of earth

 

Range = \sqrt{2hR_{e}}

where h = height of transmition tower

R_{1} = \sqrt{2h_{1}R_{e}}

R_{2} = \sqrt{2h_{2}R_{e}}

R_{2} = 2R_{1}

h_{2} = 4h_{1}


Option 1)

\frac{1}{\sqrt{2}}

Option 2)

\sqrt{2}

Option 3)

 4

Option 4)

2

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