7360404
Description
Quiz by Kriti Johri, updated more than 1 year ago
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Created by Kriti Johri
almost 8 years ago
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Question 1
Question
Light sources give out energy, we say they are
Answer
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opaque
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umbra
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luminous
Question 2
Question
Sally has her own puppet show, when she brings out one of her puppets what is the fuzzy area around the shadow called?
Answer
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umbra
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penumbra
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infrared radiation
Question 3
Question
umbra's appear when you use...
Answer
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spread out source of light
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point source of light
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none of the above
Question 4
Question
look at the picture.
If the middle card would move a bit, would Anna be able to see?
Answer
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yes
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no
Question 5
Question
When you take a picture of your friend then your friend is the
Answer
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image
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object
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detector
Question 6
Question
which principle does a pinhole camera work on?
Answer
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rectilinear propogation of light
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LASER
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light intensity
Question 7
Question
name a property of a pinhole camera
Answer
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laterally inverted
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upright
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inverted
Question 8
Question
which scientist explained how a pinhole camera works
Answer
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Ibn Batuta
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Ibn Sinha
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Al Hathyam
Question 9
Question
In the past how did people capture images
Answer
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using film
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CCDs
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Lasers
Question 10
Question
How do people store images these days?
Answer
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film
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CCDs
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lasers
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