9. How would you measure a distance by echo method ?
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In echo method, a wave (sound or electromagnetic) is sent towards the object and then reflected wave is again received back at the same position. Knowing the speed of wave and time after which reflected wave is received, the distance from which wave is reflected can be calculated.
Answered by
1
Answer:
In echo method, a wave (sound or electromagnetic) is sent towards the object and then reflected wave is again received back at the same position. Knowing the speed of wave and time after which reflected wave is received, the distance from which wave is reflected can be calculated.
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