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To see shadows with the help of our eyes, a screen is required.
Options:
A .  True
B .  False
C .  Sun is spherical in shape.
D .  Because pinhole camera always gives an upstraight image.
Answer: Option A
:
A
Shadows are formed when an object blocks the light. The screen is necessary forthe shadow to be projected (which is just the absence of light) and only after that, a shadow is visible.
To See Shadows With The Help Of Our Eyes, A Screen Is Requir...
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