Multiple choice

A red object when seen through a thick blue glass appears

  1. green

  2. violet

  3. black

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

A red object reflects red light and absorbs other colors. A blue glass only transmits blue light and absorbs others. Since the red light reflected by the object is absorbed by the blue glass, no light reaches the eye, making the object appear black.

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