Question

in youngs double slit experiment deduce the condition for constructive and destructive interference. Hence write the expression for distance between two constructive bright or dark fringe ​

Answer 1

Answer:

The intensity of light at a point on the screen will depend on the path difference between the two waves reaching that point. Consider an arbitrary point P at a distance x from O on the screen. S2P − S1P = n, n = 0, 1, 2, 3... Hence, when constructive interfernce occur, bright region is formed.