IIT-JEE
Exam
A man seeing a lighting starts counting
seconds until he hears thunder. He then
claims to have found an approximate but
simple rule that if the count of second is
divided by an integer, the result directly gives
in km, the distance of the lighting source.
What is the integer if the velocity of sound is
330 m/s
Read Solution (Total 1)
-
- distance in km.
t in s/n=(v) t
n=1/v = 1/330*10^-3 - 7 years agoHelpfull: Yes(0) No(1)
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