P5.3 Questions

Question 1

Polly is wearing a red t-shirt. Jack is wearing a yellow t-shirt. What colours would their shirt appear in:

Red light?

Answer 1

Polly’s would appear red, Jack’s would appear red.

Question 2

Polly is wearing a red t-shirt. Jack is wearing a yellow t-shirt. What colours would their shirt appear in:

Yellow light?

Answer 2

Polly’s would appear red, Jack’s would appear yellow

Question 3

Polly is wearing a red t-shirt. Jack is wearing a yellow t-shirt. What colours would their shirt appear in:

Blue light?

Answer 3

Polly’s would appear black, Jack’s would appear black.

Question 4

What’s the difference between a filter and an object?

Answer 4

A filter lets through its colour and an object reflects its colour

Question 5

What happens to white light as it goes through a yellow, green then blue filter?

Answer 5

1. As the white light goes through the yellow filter, only yellow light is reflected, and every other type of light is absorbed, emmiting yellow light
2. As they yellow light (red and green) goes through the green filter, the red light is absorbed and the green light is reflected
3. As primary colours don’t mix, as the green light passes through the blue filter, black light is emmited