The phase difference between the light waves emerging from the slits of the Young's experiment is `pi` radian. Will the central fringe will be dark or bright?

Give two differences between fringes formed in single slit diffraction and Young's double slit experiment.

What happens to fringe width in the Young's double slit experiment,if its is performed in glycerine insteaad of air?

Tick the correct option: In Young's double slit experiment the fringe width beta is :

Obtain the condition for gettin dark and bright fringes in Young's experiment.Hence write the experssion for the fringe width.

In Young's double slit experiment the width of the fringes obtained with ith of wavelength 4,500 overset@A is 1.8 mm.If the distance between the two slits is 0.3 mm,find the distance of the screen from the slits.What will be the fringe width,if the enitre apparatus is immersed in water of refraction index 4//3 .