1. A standing wave is produced in a vertical tube with both ends open. Complete

Question

1. A standing wave is produced in a vertical tube with both ends open. Complete the following sentence: Inside the tube, air molecules are

Select one:

a. only located in some regions of the tube and not others.

b. moving up and down about their undisturbed positions.

c. uniformly distributed throughout the tube at all times.

d. each oscillating between the bottom and the top of the tube.

e. moving left and right about their undisturbed positions.

2. Which one of the following superpositions will result in beats?

Select one:

a. the superposition of identical waves that travel in opposite directions

b. the superposition of identical waves that travel in the same direction

c. the superposition of waves that travel with different speeds

d. the superposition of waves that are identical except for slightly different amplitudes

e. the superposition of waves that are identical except for slightly different frequencies

3. Complete the following statement: The phenomenon of beats occurs when an observer

Select one:

a. listens to two tones with slightly different frequencies.

b. listens to two tones with the same frequency, but are exactly in phase with each other.

c. listens to two tones with very different frequencies and amplitudes.

d. listens to two tones with the same frequency, but with different amplitudes.

e. listens to two tones with the same frequency, but are exactly out of phase with each other.

Explanation / Answer

1)b-since in the standing wave their is no transfer of energy and momentum therefore their position remain unchanged and particles will only oscillate up and down about their mean position.

2) e:- by the definition of beats

3) a:- this is also definition of beats.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.