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Question

The moon is at a distance of 4×108m from the earth. What is the nature of radar signal transmitted from earth?
  1. Remain fixed
  2. Vibrate to and fro about their mean position
  3. Move along the wave
  4. Change their positions permanently

A
Change their positions permanently
B
Remain fixed
C
Vibrate to and fro about their mean position
D
Move along the wave
Solution
Verified by Toppr

radar signal is a example of EM wave . so the signal will vibrate to and fro about mean position
so the answer is B.

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