Question 1
Which colours of visible light are in the correct order of increasing wavelength?
A
red → yellow → blue
B
orange → green → violet
C
indigo → green → red
D
blue → green → violet
Question 2
A narrow beam of white light passes through a prism and is dispersed into a spectrum.
Which row is correct?
colour 1
colour 2
colour 3
blue
yellow
red
red
blue
yellow
red
yellow
blue
yellow
blue
red
Question 3
A narrow beam of white light passes through a prism and is dispersed into a spectrum.
Which row is correct?
colour 1
colour 2
colour 3
blue
yellow
red
red
blue
yellow
red
yellow
blue
yellow
blue
red
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