Two men, at points P and Q, are facing a flat and hard wall as shown. When the man at point P makes a clap, man at point Q hears two claps. If the speed of sound is 320 m `s^(-1)`, then what is the time interval between the two claps heard by man at point Q?
A
0.32 s
B
0.67 s
C
1.25 s
D
2.50 s
Text Solution
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The correct Answer is:
C
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