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What does the blackboard do when white light falls on it?​
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What does the blackboard do when white light falls on it?​

User WojonsTech
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Actually a black board has all colours in light or white light . So when light falls on it board absorbs all colours because all are present so no light is reflected back. That is the case, and so it will appear black as it absorbs all colours of light that fall on it .
User Dave Chambers
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