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A baseband signal of 3.5 MHz frequency is modulated with a carrier signal of 3.5 GHz frequency using amplitude modulation method. What should be the minimum size of antenna required to transmit the modulated signal?

1. 42.8 m
2. 42.8 mm
3. 21.4 mm
4. 21.4 m

Correct answer: 21.4 mm

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