Question

the following figure shows a wave of frequency 50hz Find the following. A. The amplitude. B. The wavelength. C. The velocity of the wave

Answer 1

A.
3 cm it can be seen from the image that amp is 3cm
B.
20 cm. distance between first crest and the second one
C.
v= wf
velocity = wavelength *. frequency
= 20* 50
=1000 m/s

Answer 2

Given that,

Frequency of a wave, f = 50 Hz

(A) The maximum displacement of the particles of a wave is called its amplitude. In this figure, the amplitude of wave is 3 cm.

(B) Wavelength of a wave is defined as the distance between two consecutive crests and troughs. Here, wavelength of a wave is 20 cm.

(c) Velocity of a wave is given by :

$v=f\lambda\\\\v=50\times 20\\\\v=1000\ m/s$

Hence, this is the required solution.

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