Questions
A man sets his watch by the sound of a siren placed at a distance 1 km away. If the velocity of sound is 330 m/s
a
His watch is set 3 sec. faster
b
His watch is set 3 sec. slower
c
His watch is set correctly
d
None of the above
detailed solution
Correct option is B
Time=Distance Velocity=1000330=3.03 sec.Sound will be heard after 3.03 sec. So his watch is set 3 sec, slower.Talk to our academic expert!
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