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CBSE Class 9 Answered

A strong transverse pulse created at one end of the string is observed to 5 up and down journeys along its length before fading out. The length of the string is 8m and the pulse take 20 seconds to complete these journeys. The speed of the pulse through the string is
Asked by Abhijeeth P | 01 Mar, 2012, 07:36: PM
answered-by-expert Expert Answer
The time taken for one journey is (5+45)/5 second i.e. 10 second Hence the speed of the pulse is (L/10) = 8/10 units
Answered by | 02 Mar, 2012, 09:46: AM

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