If Fresnel's biprism experiement as held in water in spite of air, then what will be the effect on fringe width?

If the Fresnels biprism experiment is performed in water instead of air, then the distance (d) between the coherrent sources becomes nearly

In Fresnel's biprism experiment, on increasing the prism angle, the fringe width will

What is the effect on Fresnel's biprism experiment when the use of white light is made?

What is the effect on Fresnel's biprism experiment when the use of white light is made?

In the Fresnels biprism experiment, the refracting angle is taken as very very small ?

In a Fresnel's biprism experiment, sodium light of wavelength 5832 Å is used. Calculated the fringe width, given the distance between the screen and the biprism =120 cm and the distance the two sources=0.04 cm.

In the Fresnels biprism experiment, the two coherrent sources are obtained by :

In Fresnel’s biprism experiment if the screen is moved away from the biprism, then the fringe width will :