Grade 11Wave Motion
can you please solve question 1 as soon as possible
2 Answers
Manish Tiwari
The correct answer is B.
In order to solve the question properly you need to use the standard wave eqution in terms of w,lamda and t.
Khimraj
since cos2
= ½(1 + cos2)
So
y = A/2[1+cos2(2πnt – 2π(x/
)]
Then
y = A/2 + A/2[cos(4πnt – 4π(x/)]
So Amplitude is A/2
frequency is 2n
and wavelength is /2.
Hope it clears.
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