Light and Optics Quiz for Class 8 Students

Visible Spectrum of Light

• The visible spectrum of light consists of seven colors: red, orange, yellow, green, blue, indigo, and violet.
• These colors are also commonly referred to as ROY G BIV.

Speed of Light

• The speed of light in a vacuum is approximately 299,792,458 meters per second (m/s) or 186,282 miles per second (mi/s).

Human Eye Function

• The primary function of the lens in the human eye is to focus light onto the retina, allowing for clear and sharp vision.
• The lens changes shape to accommodate near or far vision, adjusting its curvature to focus light correctly.

Test your knowledge of light with this quiz for class 8 students. Explore the speed of light in a vacuum, the colors that make up the visible spectrum, and the primary function of the lens in the human eye. See how much you know about this fascinating topic!