Above are illustrations of (1) a flashlight beam being reflected off a mirror, and (2) waves of water being reflected off the side of a swimming pool. What simple property, or characteristic, of reflection is shown by the rays of light and by the waves of water? A. Reflections of both light rays and water waves have more energy after being reflected than before they were reflected. B. The reflected rays or waves never touch non-reflected rays or waves. C. Both light rays and water waves are always perfectly straight. D. The angle at which they strike the surface is the angle at which they are reflected.

The answer is D. The angle at which they strike the surface is the angle at which they are reflected.

D.

Explanation:

According to the law of reflection, angle of incidence is equal to the angle of reflection when a ray of light falls at a smooth surface and reflected. This law of reflection is also followed by waves of water as well.

If a beam of flashlight is allowed to reflect from a mirror and waves of water being reflected off the side of a swimming pool, both will follow the above law of reflection, it means the angle at which wave and light will strike (angle of incidence) will be equal to the angle at which wave and light will reflect (angle of reflection).

It can be concluded that angle of strike (angle of incidence) is the angle of reflection (angle of reflection).

Hence, the correct answer is D.