Question

A boy stands 150 m from a wall. He claps and when he hears the echo, he immediately claps
again. He continues this for some time.
Another student has a stop-watch. She starts the watch on the first clap and stops it on the
eleventh clap. The watch reads 10.0 s.
means
Which value do her measurements give for the speed of sound in air?
A 150 m/s
B 170m/s
C 300 m/s
D 330 m/s​

Answer 1

Answer:

The correct answer is 330 m/s

Answer 2

Answer:

150 m/s is the answer of the question