Question

Does light use any route to travel like we drive a car on road?

Answer 1

See the example below...

Explanation:

The only comparison I have heard between the motion of light and a car on a road is the following:

If a car is travelling along a smooth roadway, and the right front tire rolls onto the soft gravel (we drive on the right side of the road where I come from), this tire will slow down, and the left tire, not affected by the gravel will move ahead of it.

The result will be that the path of the car will be turned toward the shoulder - that being the medium in which the tire travelled more slowly.

This is often used as a (mechanical) analogy or explanation of why light waves refract toward the normal as they travel into a medium with a greater index of refraction.

That's all I can think of!