Question

Which of the following waves can be used to measure the speed of a approaching car?
A. Light waves
B. Micro waves
C. Radio waves
D. Sound waves

Answer 1

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C✔✔✔✔

Another application is to measure the speed of flow of blood cells in an artery. A sound wave of frequency 300 Hz is emitted towards an approaching car.


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Answer - By Choudhary21

Answer 2

ĀNSWĒR ⏬⏬

Option C is correct ✔


Radio waves can be used to measure the speed of a approaching car.✔


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