The equational of a stationary wave i...

The equational of a stationary wave in a string is `y=(4mm) sin [(314m^(-1)x] cos omegat`. Select the correct alternative (s).

The amplitude of component waves in 2mm

The amplitude of componen wave is 4mm

The smallest possible through of string is 0.5m

The smallest possible length of string is 1.0m

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A, D

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