Multiple choice

In yellow light, red glass piece will appear

  1. white

  2. orange

  3. yellow

  4. red
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Red glass transmits red light while absorbing other colors. Yellow light consists of red and green wavelengths. When yellow light passes through red glass, the red component is transmitted but the green component is absorbed. The resulting transmitted light appears orange/yellow-orange, which is the visual effect of red light with a slightly modified spectrum.

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