Two pules travelling on the same string are described by y 1 - 5 - 3x-4t 2 -2 and y 2 - -5 - 3x-4t-6 2 -2 marks the correct statement s

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Standard XII

Physics

Issues with Low Frequency

Two pules tra...

Question

Two pules travelling on the same string are described by
$y_{1} = \frac{5}{{(3 x - 4 t)}^{2} + 2}$ and $y_{2} = \frac{- 5}{{(3 x + 4 t - 6)}^{2} + 2}$
marks the correct statement (s)

The direction in which each pulse is travelling

y_{1}

is in positive x-axis,

y_{2}

is in negative x-axis.

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The time when the two waves cancel everywhere is 0.75 sec.

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The point where the two waves always cancel is x=1m

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Amplitude is different for two waves

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Solution

The correct options are
A The direction in which each pulse is travelling $y_{1}$ is in positive x-axis, $y_{2}$ is in negative x-axis.
C The point where the two waves always cancel is x=1m

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