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Two sinusoidal waves with same wavelengt...

Two sinusoidal waves with same wavelengths and amplitudes travel in opposite directions along a string with a speed `10ms^-1`. If the minimum time interval between two instant when the string is flat is `0.5s`, the wavelength of the waves is

A

25 m

B

20 m

C

15 m

D

10 m

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The correct Answer is:
D
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