A glass slab of thickness 4cm contains the same number of waves as 5cm of water when both are traversed by the same monochromatic light . IF the refractive index of water is 4//3 then that of glass is

A glass slab of thickness 4cm contains the same number of waves as 5cm

1.	A glass slab of thickness 4cm contains the same number of waves as 5cm of water when both are traversed by the same monochromatic light . IF the refractive index of water is 4//3 then that of glass is
Answer» `5//3` `5//4` `16//15` `3//2` ANSWER :A