By Team Aakash Byju's | 29th November 2022
A
B
C
D
20 cm
18 cm
12 cm
8 cm
-1
Detailed Explanation
First, it is important to find the wavelength of the wave. By looking at the data, the best equation that helps to find the wavelength is:
λ=
v
f
λ is the wavelength, f is the frequency & v is the velocity of the wave.
Wave Trough
Wave Height
Wave Crest
Wave Length
Amplitude
f = frequency
T = Period
Substitute the given values to find the wavelength:
λ=
360
= 0.72cm
500
Video Credit: Pixabay
Given that, two points are 60° out of phase, and we know that: Phase difference = [2π × distance b/w 2 points] ÷ wavelength
=> [Phase difference × wavelength] ÷ 2π = distance b/w 2 points
Substitute all values to find the distance between two points.
Parts of a wave
Wave length , λ
Trough
Amplitude
Wave length , λ
Displacement
-A
0
A
=> Distance = 12 centimetres.
=> Distance = (60 × 0.72) ÷ 360 (Because 2π = 2(180) = 360)