Log in

View Full Version : Two wave of intensities


subhan2010
Jun 19, 2012, 12:21 AM
Two wave of intensities I and 4I superimpose,then the maximum and minimum intensities are..

bbs86phy
Jun 25, 2012, 05:44 AM
9I and I

subhan2010
Jun 25, 2012, 06:45 AM
How..

bbs86phy
Jun 25, 2012, 10:13 PM
If waves have intensity 4I and I
Let I =a^2 where a is amplitude of wave
I1=4a^2=(2a)^2
I2=a^2
Hence waves have amplitude of 2a and a
Imax=(2a+a)^2 = (3a)^2 = 9 a^2 = 9I
Imin = (2a-a)^2 = (a)^2 = I

subhan2010
Jun 26, 2012, 08:53 AM
Thank you...