Filters

Question 1

White light through a red filter?

Answer 1

Only red lightwave is transmitted

Green and blue lightwaves are absorbed

Question 2

White light through a yellow filter?

Answer 2

Both red and green lightwaves are transmitted

Blue lightwave is absorbed

Question 3

White light through a magenta filter?

Answer 3

Red and blue lightwaves are transmitted

Green lightwave is absorbed

Question 4

White light through a blue filter?

Answer 4

Only blue lightwave is transmitted.

Red and green lightwaves are absorbed

Question 5

White light through a cyan filter?

Answer 5

Only blue lightwave is transmitted.

Red and green lightwaves are absorbed

Question 6

White light through a green filter

Answer 6

Only green lightwave is transmitted

Red and blue wavelengths are absorbed

Question 7

White light through green AND blue filters

Answer 7

No wavelengths are transmitted

All wavelengths are absorbed

Question 8

What does transmit mean?

Answer 8

To allow a colour wavelength to pass through

Question 9

What does absorb mean?

Answer 9

To stop a colour wavelength from passing through

Question 10

What is a colour filter?

Answer 10

A substance that transmits certain colour wavelengths and abosrbs others