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Question

A carrot looks orange in colour because of the β carotene molecule in it. This means that the β carotene molecule absorbs light of wavelengths.

A
Longer than 550 nm
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B
Shorter than 550 nm
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C
Longer than 700 nm
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D
Shorter than 700 nm
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Solution

The correct options are
A Longer than 550 nm
C Shorter than 700 nm
Approximate value of wavelength for orange colour is between 590 to 625.
Hence for carrot having orange colour β carotene molecule absorbs wavelength longer than 550 and shorter than 700.

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