At one end of a ripple tank 90 cm across, a 6Hz vibrator produces wav – McqOptions

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1.	At one end of a ripple tank 90 cm across, a 6Hz vibrator produces waves whose wavelength is 30 mm. The time needed to cross the waves is
A.	3 seconds
B.	7 seconds
C.	10 seconds
D.	5 seconds
Answer» E.

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