AP EAMCET · PHYSICS · Communication System
For transmitting a signal of frequency 1000 kHz, the minimum length of the antenna is
- A 30 m
- B 50 m
- C 75 m
- D 1500 m
Answer & Solution
Correct Answer
(C) 75 m
Step-by-step Solution
Detailed explanation
\(\lambda = \frac{c}{f} = \frac{3 \times 10^8 \text{ m/s}}{1000 \times 10^3 \text{ Hz}} = 300 \text{ m}\) \(L_{min} = \frac{\lambda}{4} = \frac{300 \text{ m}}{4} = 75 \text{ m}\)
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