Question

the sound of a stop clock received in the ear while doing the experiment of reflection of sound should be
a) the direct sound from the clock
b)the sound reflected from the ceiling of the laboratory
c)the sound coming through the pipe after reflection from the reflecting surface d)both a and b ​

Answer 1

Answer:

$<marquee behavior = move bgcolor =yellow ><h1 > Option A </h1 ></marquee >$..................

Answer 2

Answer:

$option \: d) \: is \: correct$