Three waves due to three coherent sources meet at one point. Their amplitudes are sqrt2A_0 , 3A_0 and sqrt2A_0 . Intensity corresponding to A_0 is l_0. Phasse difference between first and second is 45^@. Path difference between first and third is lambda/4. In phase angle, first wave lags behind from the other two waves. Find resultant intensity at this point.
Answers
Answer:
Three waves of same amplitude interfere at a point, the phase difference between consecutive waves is 2π
I.e. phase difference between first and third is π these two will destructively interfere to give a wave of 0 amplitude which superimposed with the second wave, gives us a wave of just amplitude A.
The vital condition for interference to take place is coherence.
Hence both assertion and reason are true, but reason is not the correct explanation.
Answer:
Three waves due to three coherent sources meet at one point. Their amplitudes are
and
. Intensity corresponding to
is
. Phasse difference between first and second is
. Path difference between first and third is
. In phase angle, first wave lags behind from the other two waves. Find resultant intensity at this point.
Explanation: