Question

A red and a green pencil are taken in a room illuminated with green light. In the room

• A. Both pencils will appear dark
• B. Pencils will appear as red and green respectively
• C. Red pencil will appear dark and green pencil as green
• D. Red pencil will appear red and green pencil dark

Answer 1

The correct option is C Red pencil will appear dark and green pencil as green

$\begin{array}{c}\text{A colour absorbs all other colour's except it's own.}\\ \text{So red absorbs all excepted and green absorbs all except}\\ \text{green.}\\ \text{So when a red and a green pencil are kept in green (light.}\end{array}$

$\begin{array}{c}\text{the green pencil reflects green colour and red pencil absorbs}\\ \text{greencolour. Therefore green pencil appears green and the}\\ \text{red pencil appear's dark.}\end{array}$