A red rose when seen in green light appears | WBCS Preliminary GK 2000
https://things-for-students.blogspot.com/2022/03/a-red-rose-when-seen-in-green-light.html
A red rose when seen in green light appears
(a) Red in colour
(b) Green in colour
(c) White in colour
(d) Black in colour
Correct Answer: Black in colour
