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छाया देखने के लिए क्या आवश्यक है? , What is needed to see shadow ?
What is needed to see shadow ?
A.
Source of light
प्रकाश के स्रोत
B.
Screen
स्क्रीन
C.
An opaque object
एक अपारदर्शी वस्तु
D.
All of these
ये सभी
Solution
D. All of these
Explanation
To see a shadow we need a source of light, an opaque object in the path of light and a screen.
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