Calculating Period of Transverse Wave from Photo: A or B?

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The discussion revolves around calculating the period of a transverse wave based on a provided photo, with the actual answer being 0.5 seconds, while one participant initially believed it to be 1.0 seconds. The reasoning presented suggests that the journey from point A to B represents half of the wave's period, leading to a conclusion of 4 seconds for the full period. There is confusion among participants regarding the correctness of the given answer, with one expressing doubt about the accuracy of the provided solution. The conversation highlights the challenges in understanding wave concepts and the importance of clarity in homework solutions.
tomcps
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Homework Statement


The problem is shown on the photo. And the actual answer is A. 0.5s, and I thought it would be B. 1.0s

Homework Equations

The Attempt at a Solution


Here is my thought,
The journey from A to B is just a half period, then the whole period would be 4s, as a result, the time it takes for C to return would be 4÷4= 1.0s
Isn't it? Sorry i don't have good concepts of wave
 

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Hi tom, :welcome:

I agree with your answer. The actual answer given must be a mistake
 
BvU said:
Hi tom, :welcome:

I agree with your answer. The actual answer given must be a mistake

Really? I am so confused now:cry:
 

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