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AP EAMCET20227 Jul 2022Evening ShiftPhysicsCommunication SystemActual

The minimum size of an antenna for transmitting electromagnetic waves at 1500 MHz is

Options

  1. A2 ~cm
  2. B5 ~cm
  3. C2 ~m
  4. D200 ~cm

Correct answer

B. 5 ~cm

Step-by-step solution

Minimum size of transmitting antenna, aligned l & = 4 = c / f 4 l & = 3 10^8 4 1500 10^6 = 3 25 1500 = 1 20 ~m & = 100 20 ~cm =5 ~cm aligned

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