The equation $y = 4 + 2 sin (6 t - 3 x)$ represents a wave motion with amplitude of

6 u n i t s

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2 u n i t s

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20 u n i t s

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8 u n i t s

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Solution

The correct option is B $2 u n i t s$
A wave can be represented by:
$y = C + a sin (ω t \pm k x)$ , where a is the amplitude of the wave. Comparing with the equation given in the question, $a = 2$ .

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