The sound waves are reflected from an
obstacle into the same medium from
which they were incident. Which of the
following changes?
a) speed
b) frequency
c) wavelength
d) none of these
Answers
Answered by
1
Answer:
i think none of these... all are same
Answered by
2
HEY ITS ANSWER WILL BE
OPTION B FREQUENCY
PLS MARK ME AS BRAINLIEST
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