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Questions  

The stationary wave produced on a string is represented by the equation y=5cos(πx/3)sin40πt. Where x and y are in cm and  t is in seconds. The distance between consecutive nodes is 

a
5 cm
b
π cm
c
3 cm
d
40 cm

detailed solution

Correct option is C

On comparing the given equation with standard equation ⇒2πλ=π3⇒λ=6 cm. Hence, distance between two consecutive nodes ⇒λ=3cm

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