Which Statement Is True About the Speed of Photons and Light

question 14

Multiple Choice

Which statement is true about the speed of photons and light waves?

• A) red light is slower than blue light
• B) each color travels at a different speed
• C) all travel at the same speed
• D) the longer the wavelength, the lower the speed

---

Definitions:

Magnetic Lines

Imaginary lines used to represent the direction and strength of a magnetic field around a magnet or an electric current.

Pole Pieces

The parts of a DC machine that form magnetic poles.

Mechanical Energy

The sum of potential and kinetic energy in a physical system, associated with the motion and position of objects.

DC Electrical Energy

Energy supplied by a direct current (DC) source, characterized by the uni-directional flow of electric charge.