Question

A ,B,C are three filters. A transmits red, orange, yellow and green light. B transmits green and blue light and C transmits yellow light. Describe the nature of the light transmitted through:
1. A and C
2. A and B
3. B and C
4. A, B and C

Answer 1

1. A and C ::A transmits red orange yellow and green
​​​​​but c transmits only yellow.so the combination of A and C gives out only yellow light
2.A and B::as discussed earlier A transmits red orange yellow and green but B transmits green and blue .so only blue light comes out with this combination
3.B and C:: B transmits green and blue but C only allows yellow light. So this combination of B and C gives no light outcome
4.A,B and C:: the three filters all together have no common colour which they passes through.so no light outcome will be obtained