An EM wave radiates outwards from a dipole antenna,
Question:

An EM wave radiates outwards from a dipole antenna, with E0 as the amplitude of its electric field vector. The electric field E0 which transports significant energy from the source falls off as

(a) 1/r3

(b) 1/r2

(c) 1/r

(d) remains constant

Solution:

(c) 1/r

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