Waves Class 11th physics ncert solutions class 11th Physics

Which of the following equations represents a traveling wave?

Option 1 - <p>y = A </p>

Option 2 - <p>y = Asin (15x -2t)</p>

Option 3 - <p>y = Ae<sup>x</sup> cos<span class="mathml" contenteditable="false"> <math> <mrow> <mrow> <mo>(</mo> <mrow> <mi>ω</mi> <mi>t</mi> <mo>−</mo> <mi>θ</mi> </mrow> <mo>)</mo> </mrow> </mrow> </math> </span> </p>

Option 4 - <p>y =  <span class="mathml" contenteditable="false"> <math> <mrow> <mi>A</mi> <msup> <mrow> <mi>e</mi> </mrow> <mrow> <mo>−</mo> <msup> <mrow> <mi>x</mi> </mrow> <mrow> <mn>2</mn> </mrow> </msup> </mrow> </msup> <mrow> <mo>(</mo> <mrow> <mi>v</mi> <mi>t</mi> <mo>+</mo> <mi>θ</mi> </mrow> <mo>)</mo> </mrow> </mrow> </math> </span></p>

1 Views|Posted 6 months ago

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Answered by

Vishal Baghel | Contributor-Level 10

6 months ago

Correct Option - 2

Detailed Solution:

Travelling wave is represented by $f (t \pm \frac{x}{v})$ $\frac{}{}$

Thus, y = A sin (15x – 2t) represents a travelling wave

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