CTET 2 Math and Science Jan 2021 Paper

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Question : 88 of 150
 
Marks: +1, -0
Which of the following properties of light can be used to explain the phenomenon of shadow formation?
A. Light travels in a straight line.
B. Light travels at a high speed.
C. Light is composed of seven colours.
D. Light does not pass through opaque objects.
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