Question

please freinds help me. its urgent .

Answer 1

Hope u like my process
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=> 10 ripples per second means

Frequency = 10 Hz

=> wavelength = 2× 10 = 20 cm=0.2 m


=> velocity = wavelength ×frequency

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bf \: = 0.2 \times 10 = 2m {s}^{ - 1}$
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