A wave is travelling along a string. At an instant, shape of the string is as shown in figure. At this instant, point 
is moving upwards. Which of the following statements is/are correct?
at this instant. 
is also directed upwards. 
and 
may be equal to 
.
Text Solution
Verified by ExpertsB
Since 
is moving upwards, therefore after an elemental time interval, the wave will be as shown dotted in adjacent figure. It means, the wave is travelling leftward. Therefore, is incorrect.
Displacement amplitude of the wave means maximum possible displacement of medium particles due to propagation of the wave, which is equal to the displacement at 
at the instant as shown in figure. Hence is correct.
From figure, it is clear that 
is moving downward at this instant. Hence, is incorrect.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems