Question

The diagram shows light interacting with an object.

A blue box has 3 black arrows pass from left to right to its left surface, which they strike at a shallow angle. The arrows then become lines, which move through the box at a different angle. The arrows reemerge as arrows from the right side at the same angle at, which they first struck the box.

Which object is the light most likely striking?

a window
a mirror
a plaster wall
a steel beam

Answer 1

a window

Explanation: the rays pass through the object and refract inside then emerge parallel to their original direction. That behavior is characteristic of a transparent slab with parallel faces (glass window). A mirror would reflect, and plaster or steel would not let the rays transmit like that.