Law of Reflection Calculator

Calculate Angle of Reflection

Formula

To calculate the angle of reflection:

θr = θi

Where:

What is the Law of Reflection?

The Law of Reflection is a principle in physics that states that the angle of incidence is equal to the angle of reflection. This means that when a ray of light hits a smooth surface, such as a mirror, it will bounce off at the same angle as it hit the surface, but on the opposite side of the normal line (a line perpendicular to the surface at the point of incidence). This law applies to all types of waves, including light, sound, and water waves.

Example Calculation 1

Let's assume the following value:

Using the formula:

θr = θi = 30 degrees

The angle of reflection is 30 degrees.

Example Calculation 2

Let's assume the following value:

Using the formula:

θr = θi = 45 degrees

The angle of reflection is 45 degrees.