Light is known to behave in a very predictable manner. If a ray of light…

In the first section of Lesson 1, it was stated, "without light, there would be no…

Reflection and its Importance The Role of Light to Sight The bottom line is: without…

As is often the case, physics is not a science that is restricted to the…

The previous section of Lesson 3 discussed Thomas Young's effort to derive an equation relating…

Previously in Lesson 3 we have seen how circular waves from two sources can interfere in…

Two-point source interference occurs when waves from one source meet up with waves from another…

Anatomy of a Two-Point Source Interference Pattern This unit of The Physics Classroom Tutorial focused…

The sun emits light waves with a range of frequencies. Some of these frequencies fall…

The previous lesson focused on the principles of color addition. These principles govern the perceived…