1
$\begingroup$

A transverse sinusoidal wave on a string moves from left to right. A snapshot of the wave is shown. Consider the red point on the figure being pointed to by the red arrow. Which way is this red dot moving at this instant?

I thought it's moving up. But the answer is moving down. I don't quite understand. Could anyone explain, please?

Improve this question
$\endgroup$
5
  • $\begingroup$ Indeed it is moving down. $\endgroup$
    – आर्यभट्ट
    Commented Jul 14, 2020 at 3:27
  • 1
    $\begingroup$ Yea, but why is it? $\endgroup$
    – user8314628
    Commented Jul 14, 2020 at 3:28
  • 1
    $\begingroup$ you need to fix a stationary line which passes through the particle and is perpendicular to direction of propagation , as wave moves in right direction , you could see the particle oscillating in the straight line up and down $\endgroup$
    – maverick
    Commented Jul 14, 2020 at 3:36
  • 1
    $\begingroup$ Cool! That makes sense. $\endgroup$
    – user8314628
    Commented Jul 14, 2020 at 3:37
  • $\begingroup$ Actually the wave stretch and release the string while travelling transversely $\endgroup$
    – आर्यभट्ट
    Commented Jul 14, 2020 at 3:43

1 Answer 1

Reset to default
3
$\begingroup$

enter image description here

${}{}{}{}{}{}{}{}{}{}{}{}{}{}{}$

Improve this answer
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.