Question

n identical waves each of intensity Io​ interfere with each other . The ratio of maximum intensities if the interference is (i) coherent and (ii) incoherent is
a) n2
b) 1/n
c) 1/n2
​d) n

Answer 1

Final Answer : n

By Coherent source, I max = n^2 I(o)
By non Coherent source, I max = nI(o)

Answer 2

Dear Student,

◆ Answer -

Imax/Imin = n

● Explanation -

When sources are coherent, intensity of interferrence will be maximum.

Imax = n²Io

When sources are incoherent, intensity of interferrence will be minimum.

Imin = nIo

Ratio of intensities of coherent sources to incoherent souces is -

Imax/Imin = n²Io / nIo

Imax/Imin = n

Thanks dear. Hope this helps you...