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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Physics
Chapter
Communication System

NTA Abhyas 2020 · Physics · Communication System

If a carrier wave of 1000 kHz is used to carry the signal, the...

If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be at least equal to

Options

  1. A3 m
  2. B75 m
  3. C600 m
  4. D3000 m

Correct answer

B. 75 m

Step-by-step solution

λ=3×1081×106=300 m\lambda = \dfrac{3 \times {10}^{8}}{1 \times {10}^{6}}= \text{300 m}

{l}_\min = \dfrac{\lambda}{4} = 7 5 m
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