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in Science by (70.1k points)

Four students A, B, C, & D in a group take 6m long slinky and produce a longitudinal wave, they observe that in 10 sec, 4 waves completed. On these observation the speed of wave in slinky is 

(a) 4.8 m/s 

(b) 6.4 m/s 

(c) 7.2 m/s 

(d) 9.6 m/s

1 Answer

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Best answer

(a) 4.8 m/s 

Explanation: 

Total distance covered by wave in slinky to cover 4 forth backward motion 

S = 4 × 2 × 6 = 48 m 

Total time taken (t) = 10 s

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