Multiple choice

Colour of red rose in green light becomes ______.

  1. white

  2. black

  3. red

  4. green

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A red rose appears red because it reflects red light and absorbs other colors including green. Under pure green light, no red light is available to reflect, so the rose absorbs all incident light and appears black (no reflection).