Question
Comparing refraction through a rectangular glass slab versus a triangular prism, which statement is correct? lateral shift), while a prism's inclined faces cause a net angular deviation
Both always produce zero net deviation of the emergent ray
A slab's parallel faces cause the emergent ray to remain parallel to the incident ray (with
A prism never bends light at all, unlike a slab
A slab causes more deviation than a prism always
Detailed Explanation
This is the key structural difference explained in the chapter: parallel faces (slab) preserve the ray's direction (net zero angular deviation, only lateral shift), while a prism's inclined faces cause an actual angular deviation.