A ray of light passes normally through a slab `mu=1.5` of thickness `t`. If the speed of light in vaccum be `c`, then time taken by the ray to go across the slab will be

A ray of light passes normally through a slab (mu=1.5) of thickness t. If the speed of light in vacuum be C, then time taken by the ray to go across the slab will be

A ray of light passes normally through a slab (n = 1.5) of thickness t . If the speed of light in vacuum be c , then time taken by the ray to go across the slab will be :

A ray of light passes through a glass slab of thickness t and refractive index mu . If the speed of light in air be 'c', the time taken by the ray to cross through the plate is _______

A ray of light passes through a glass plate of thickness and refractive index mu if the speed of light in vacuum is c ,then the time taken by light in passing through the plate will be-

Light passes through a glass slab of refractive index .n. and thickness .t.. If .C. is the speed of light in free space, then time taken to emerge | light out of glass slab will be ......

A ray of light strikes a glass slab (R.l. = mu ) of finite thickness t. The emerging light is

A ray of light strikes a glass slab (R.l. = mu ) of finite thickness t. The emerging light is