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Show that the minimum length of antenna required to transmit a radio signal of frequency 10 MHz is 7.5m.

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Show that the minimum length of antenna required to transmit a radio signal of frequency 10 MHz is 7.5m.
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v=10 MHz=`10^7` Hz, `lambda=c/v=(3xx10^8)/10^7`=30 m
Minimum length of antenna =`lambda/4`=7.5 m
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