Physics · Electromagnetic Waves
An electromagnetic 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 with distance r as:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11r3
- 21r2
- 31r✓
- 4remains constant
Correct answer
1r
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