283238 Interference fringes are produced on a screen by using two light sources of intensities ' \(I\) ' and '9I'. The phase difference between the beams is \(\frac{\pi}{2}\) at point \(P\) and \(\pi\) at point \(Q\) on the screen. The difference between the resultant intensities at point \(P\) and \(Q\) is
283238 Interference fringes are produced on a screen by using two light sources of intensities ' \(I\) ' and '9I'. The phase difference between the beams is \(\frac{\pi}{2}\) at point \(P\) and \(\pi\) at point \(Q\) on the screen. The difference between the resultant intensities at point \(P\) and \(Q\) is
283238 Interference fringes are produced on a screen by using two light sources of intensities ' \(I\) ' and '9I'. The phase difference between the beams is \(\frac{\pi}{2}\) at point \(P\) and \(\pi\) at point \(Q\) on the screen. The difference between the resultant intensities at point \(P\) and \(Q\) is
283238 Interference fringes are produced on a screen by using two light sources of intensities ' \(I\) ' and '9I'. The phase difference between the beams is \(\frac{\pi}{2}\) at point \(P\) and \(\pi\) at point \(Q\) on the screen. The difference between the resultant intensities at point \(P\) and \(Q\) is