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The amplitude of a wave represented by d...

The amplitude of a wave represented by displacement equation `y=(1)/(sqrt(a)) sin omega t +-(1)/(sqrt(b)) cos omega t ` will be

A

` (a+b)/( ab) `

B

` ( sqrt(a)+ sqrt( b) )/( ab) `

C

` ( sqrt( a) +-sqrt(b))/( ab) `

D

` sqrt(( a+b) /( ab))`

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The correct Answer is:
D
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