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An EM wave radiation outwards from a dip...

An EM wave radiation outwards from a dipole antenna, with `E_0` as the amplitude of its electric field vector. The electric field `E_0` which transports signification energy from the source falls off as

A

`1/(r^3)`

B

`1/(r^2)`

C

`1/r`

D

remains constant

Text Solution

Verified by Experts

The correct Answer is:
c
From a dipole antenna, the em wave are radiated outwards. The amplitude of electric field vector `(E_0)`
which transport significant energy from the source falls off the electric intensity inversely as the
distance r from the antenna, i.e., `E_0prop1/r`.
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