Physics, asked by nilesh7823, 3 months ago

The equation of progressive is y=3cos(60t+2x) where x and y are in meters and t in secs .Which of the following statement is wrong ?

the wave velocity of 30ms^-1
the wave length is πm
the amplitude is 3m
the frequency is 30Hz

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Answers

Answered by astrophile251
4

Heya !

Here's your answer:-

The equation of a given progressive wave is

y=5sin(100πt−0.4πx) ..(i)

The standard equation of a progressive wave is

y=asin(ωt−Kx) ...(ii)

Comparing (i) and (ii), we get

a=5m,ω=100π rad s

−1

,k=o.4πm

−1

(1) Amplitude of the wave, a=5m

(2) Wavelength of the wave, λ=

k

=

0.4π

=5m

(3)Frequency of the wave, υ=

ω

=

100π

=50Hz

(4) Velocity of the wave, ν=υλ=(50s−1(5m)=250ms−1.

Answered by VaibhavSR
1

Answer:

(1) Amplitude of the wave, a=5m

(2) Wavelength of the wave, λ= k 2π  = 0.4π 2π =5m

(3)Frequency of the wave, υ= 2π ω  = 2π  100π  =50Hz

(4) Velocity of the wave, ν=υλ=(50s⁻¹(5m)=250ms⁻¹

Explanation:

The wave pace method says it's miles the made of wavelength and the frequency of the wave. I.e., Wave pace (v) mathematically is given with the aid of using, ⇒v=wk.

The wavelength is calculated from the wave velocity and frequency with the aid of using λ = wave velocity/frequency, or λ = v / f.

The amplitude of a wave refers back to the most quantity of displacement of a particle at the medium from its relaxation function. In a sense, the amplitude is the space from relaxation to crest. Similarly, the amplitude may be measured from the relaxation function to the trough function.

The equation of a given revolutionary wave is

y=5sin(100πt−0.4πx) ..(i)

The popular equation of a revolutionary wave is

y=asin(ωt−Kx) ...(ii)

Comparing (i) and (ii), we get

a=5m,ω=100π rad s ⁻¹ ,okay=o.4πm⁻¹

(1) Amplitude of the wave, a=5m

(2) Wavelength of the wave, λ= okay 2π  = 0.4π 2π =5m

(3)Frequency of the wave, υ= 2π ω  = 2π  100π  =50Hz

(4) Velocity of the wave, ν=υλ=(50s⁻¹(5m)=250ms⁻¹

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