Quiz Rainbows

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Quiz Rainbows
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• 1. Rainbows result from _____________and
  _____________of light.

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• 2. You can see the rainbow only
• if it is located at the ______________of
  your head.

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• 3. You can search for a rainbow in
• a ____________or in the spray
• from a ___________.

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4. What would be the colour of the rainbow if
water drops in the air are larger than 1mm in
diameter?
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• 5. Water droplets in air with the size smaller
  than 0.05mm may produces ____________.

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6. State the conditions for formation of
secondary rainbow.
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7. We may be able to see the entire circle of the
rainbow from an _________________.
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8. State one difference between primary and
secondary rainbow.
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9. With the use of _____________and ___________,
rainbow order up to thirteen can be seen in the
laboratory.
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• Answers
• Refraction and reflection.
• Shadow
• Water fall, hose/sprinkler
• A bright red, green and violet rainbow with
  little blue colour can be observed.
• White rainbow/fog bow
• Two reflections inside the water droplet.
• Airplane.
• Secondary rainbow is about twice as wide as
  primary rainbow. OR
• Secondary rainbow has the reversed colour of the
  primary rainbow.
• 9. Laser, water droplets.