Question

practice it!
all of the following statements about white light are correct, except:
when all 7 colors are focused on one point, it creates white light.
white light is composed of 7 different colors.
when colors are focused into a prism, it creates white light.
isaac newton discovered that white light consists of colors by using a prism.

Explanation:

• Analyze each option:
• Option 1: Combining 7 colors (like in color mixing or light combination) creates white light, correct.
• Option 2: White light is a spectrum of 7 visible colors (ROYGBIV), correct.
• Option 3: A prism disperses white light into colors (not the reverse). Focusing colors into a prism does not create white light; this is incorrect.
• Option 4: Newton used a prism to show white light is composed of colors, correct.

Answer:

C. When colors are focused into a prism, it creates white light.