Question

For a progressive wave, in the usual notation
(1) v = XT
(2)n=v/ lambda
(3) T= lambda v
(4)lambda =1/n​

Answer 1

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Answer 2

Answer:

(2)$n=\frac{v}{\lambda}$

Explanation:

• A travelling wave, also known as a progressive wave, is a wave that travels continually in the same direction in a medium without changing its amplitude.
• If v is the wave's velocity. The total distance traversed by a wave per unit time is known as the wave's velocity. It is provided by:
• $v=\frac{d}{t}$
• The wavelength of a wave is the distance between one crest and another crest or one trough and another trough. It is the same as the distance travelled. The time it takes for one oscillation to complete is referred to as the wave's time period. As a result, the velocity of a wave can be calculated as follows:
• $v=\frac{\lambda}{t}$
• Where ‘ v ’ is velocity of the wave and λ is the wavelength and and t is time taken
• We have frequency $(n)=\frac{1}{t}$
• $\therefore v=n \times \lambda\\n=\frac{v}{\lambda}$