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CBSE Class 9 Answered

Sir can you please a give a numerical from chap 12 sound related to slinky with formula v=lambda x frequency
Asked by Aniket | 13 Mar, 2015, 06:15: PM
answered-by-expert Expert Answer

Hi Aniket,

A slinky is shaken and a wave pattern forms on it. The slinky has 10 waves formed per second. The distance between two compressions on the slinky is 10 cm. How fast is the wave travelling?

The answer to this is

begin mathsize 14px style For space slinky comma straight n equals 10 space Hz straight lambda equals 10 space cm equals 0.1 space straight m Speed space of space the space wave space is straight v equals nλ equals 10 cross times 0.1 equals 1 space straight m divided by straight s end style

Answered by | 13 Mar, 2015, 06:40: PM

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