1.Which one of the following statements regarding wavelength is correct? a)Wavel

Question

1.Which one of the following statements regarding wavelength is correct?
a)Wavelength is the distance between two consecutive locations where the medium is at equilibrium.

b)Wavelength is the distance from a crest to the next trough.

c) Wavelength is the distance that the wave travels in a time of one period.

2.If the tension in a guitar string is increased, what happens to the speed of a wave in the string?

a)The wave speed decreases.

b)The wave speed is unchanged.   

c) The wave speed increases.

3. s it possible for two waves to combine in such a way that a point in the medium behaves as though no waves are present?

a) No, every point in the medium must undergo a displacement due to the waves.

b) Yes, this is possible if, at the point being considered, one wave is trying to displace the medium in the positive direction and the other wave is trying to displace the medium by the same amount but in the negative direction.   

Explanation / Answer

wavelength is the distancefrom crest to crest or from trough to trough. The wavelength can also be thought of as the distance a wave has traveled after one complete cycle—or one period.

Definition :- The distance between corresponding points of two consecutive waves. “Corresponding points” refers to two points or particles in the same phase.

Hence in Problem-1 options a and c are correct options.

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