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In the given progressive wave y = 5 sin (100πt – 0.4πx ) where y and x are in m, t is in s. What is the

(a) amplitude

(b) wave length

(c) frequency

(d) wave velocity

(e) particle velocity amplitude.

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(a) 5m, (b) 5m, (c) 50Hz, (d) 250ms-1, (e) 500p ms-1.

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