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प्रश्न
Why does a piece of paper appear white in sunlight ? How would you expect it to appear when viewed in red light?
उत्तर
A piece of paper appears white in sunlight because it reflects light of all the colours. It would appear red when viewed in red light.
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संबंधित प्रश्न
Write true or false of the following statement.
A black paper absorbs light of all the colours and reflects none.
Write true or false of the following statement.
The primary colours are red, blue and green.
Fill in the blank
The colour of an opaque object is the colour of light which it _______
Fill in the blank
Magenta, cyan and yellow are the ________ colours.
Select the correct alternative
The primary colours are
Fill in the blank with the appropriate colour
Blue + _______ = Cyan
Fill in the blank with the appropriate colour
Green + Red = ______
The leaves appear green when seen in white light. Give a reason.
A rose appears red in white light. How will it appear in red light?
Give a reason for your answer.
Discuss and write:
Write a science-based paragraph on 'What if the sun did not rise?'
