A man generates a symmetrical pulse in a string by moving his hand up and down. At 
, the point in his hand moves downward. The pulse travels with speed of 
on the string and his hands passes 6 times in each second from the mean position. The point on the string at a distance 3 m from the hand will reach its upper extreme first time in
A
1.25 s
B
1 s
C
D
2.25 s
Text Solution
Verified by ExpertsThe correct answer is:
A
Frequency of wave 
;
Time taken by wave to reach the point at distance 3 m , 
Time taken by particle at 3 m distance to reach its upper extreme position,
Total time taken 
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