DISPERSION & COLOURS

Question 1

What is a spectrum?

Answer 1

All colours together

Question 2

What is dispersion?

Answer 2

Splitting white light into spectrum

Question 3

Can you recombine a rainbow back into a white light?

Answer 3

Yes

Question 4

How are rainbows formed?

Answer 4

• Raindrops behave like small prisms
• Sunlight is refracted, reflected and dispersed

Question 5

For light, red and green = ?

Answer 5

yellow

Question 6

For light, green and blue = ?

Answer 6

cyan

Question 7

For light, red and blue = ?

Answer 7

magenta

Question 8

A filter only allows ________ of light through

Answer 8

certain colours