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Grade: 9
        
Hello.......
    Define and explain breifly dopplers effect . Please also give its applications .
one year ago

Answers : (1)

sayan patra
11 Points
							
Whenever there is a relative motion between the source of waves,medium and the observer,the frequency of waves received by the observer is different from the frequency of waves emitted by the source.This effect is known as doppler effect.By using doppler effect of light we conclude that universe is expanding.
one year ago
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