Question

in which type of medium would light waves travel in a straight line?
○ a medium that is uneven
○ a medium that is uniform
○ a medium that is varied
○ a medium composed of different densities

Explanation:

Light travels in straight lines (rectilinear propagation) when it moves through a medium with consistent properties, as changes in density or uniformity cause refraction/bending. Uneven, varied, or multi-density media alter light's path.

Answer:

a medium that is uniform