If frequency of sound wave in air at standard temperature and pressure remains constant its energy can be varied by changing its
a)amplitude
b)speed
c)wavelength
d)period
reason+correct option
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Answer:
it is wawelength or speed because according to formula E=h.mew ,mew is c/lamda .Which means die to schange in speed or wavelength we can wary energy !!!!.if it's correct regarding to u mark as brainlist !!!!!!❣️❤️❤️❤️
Answered by
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Answer:
wavelength because sound travels through wavelength
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