Question

In this figure, calculate the frequency of the wave if it took 0.2 seconds to reach A.​

Answer 1

Answer:

let wavelength be x

according to question

the given wave took 0.2 sec to reach A

here covered distance is A i.e. 3x according to our assumption.

means 0.2 sec is needed to reach 3x

time required to cover x distance(i.e. wavelength ) is 0.2/3

we know

frequency = 1/time period

frequency = 1/0.2/3 = 3/0.2

frequency = 30/2 = 15

so the frequency is 15hertz

hope this will help you

Answer 2

$</p><p>\huge{\fbox{\fbox{\bigstar{\mathfrak {\red{The \: Answer \: Is \: 0.125 \: Hz . }}}}}}$

This Question Is Very Easy.

From the above graph, find the time period of the wave.

The time period of a wave is the time taken by the wave to complete a oscillation.

Hence, the time period of this wave is 8 seconds.

Frequency = { 1/ Time Period } = 0.125 Hz.

Hope this helps....☝☝☝