Question

What would be the path of refracting ray and emergent ray it two slab kept attached to each other

Answer 1

yes . It is parallel to incident ray.

when light ray is enter in glass slab,it gets bend due to refraction of light.Refracted ray also try to escape out from slab so it fall on another side of slab and refract ,then emergent ray is came in manner with parallel to incident ray.

Answer 2

When light ray enter in glass first slab it gets bent to refraction of light . Refracted rey also try to come out from slab so it fall on another side of slab and refract then emergent ray is come out in manner with parallel to incident ray