1 Answers

In which of the following diagrams is the length of the tube equal…

Posted by: 719 views ,
PHYSICS

In which of the following diagrams is the length of the tube equal to one wavelength?

In which of the following diagrams is the length of the tube equal to one wavelength

QUICK ANSWER…

A

DETAILS…

The simplified illustration is given in the sketch below so that you can quickly and easily solve problems like this in the future:

In which of the following diagrams is the length of the tube equal

For any problem featuring tubes with wave lines as shown above, please always note that the length of each half circle = λ/4 = one-fourth of the wavelength.

For this featured sketch, the total length of the tube will be = addition of each λ/4 = λ/4 + λ/4 + λ/4 + λ/4 + λ/4 + λ/4 + λ/4 = 7λ/4

So, L = 7 λ/4

Applying this idea to each option to determine the option with L = λ, we proceed to each option.

Now for the right answer to the above question:

  1. Option A is correct. L = λ/4 + λ/4 + λ/4 + λ/4 = 4λ/4 = λ
  2. Option B is incorrect. L = λ/4 + λ/4 = 2 λ/4 = λ/2
  3. C is incorrect. for tube C, L = λ/4
  4. D is not the correct answer. for this option, L = λ/4 + λ/4 + λ/4 + λ/4 + λ/4 = 5 λ/4

KEY-POINTS…

You may please note these/this:

  • The length of each half cycle = λ/4.
  • The length of any kind of tube can be resolved by dividing the wave lines into half cycles and adding each individual unit as λ/4.

You are free to add your own answers below this page to assist others improve their learning.

You can also click the golden ASK A QUESTION BOTTON down this page to raise new related questions… OUR COMMUNITY OF EXPERTS WILL BE MORE THAN HAPPY TO TACKLE IT…

/ culled from 2020 JAMB-UTME physics past question 38 /

1 Answers

  1. 0 Votes Thumb up 0 Votes Thumb down 0 Votes

    You should basically split the waveforms into half cycles and count. the length of the pipe will be = Nh/4

    Vicky - May 25, 2021 | Reply


Answer Question