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The figure shown at time t = 0 second, a...

The figure shown at time `t = 0` second, a rectangular and triangular pulse on a uniform wire are approcaching other. The pulse speed is `0.5 cm//s` . The resultant pulse at `t = 2` second is

A

B

C

D

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The correct Answer is:
D
At t = 2 second, the position of both pulses are separately given by figure (a) and figure - (b), the super position of both pulses is given by figure - ("C")
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