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1 vote
Blue colored light has a wavelength of about 400 nm. This is the same as ___________ meters.

>>> 400 m
>>> .4 m
>>> 0.004 m
>>> 0.0000004 m

User Soumya
by
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1 Answer

4 votes
The answer is 4 bcoz 1 nano meter is equal to .000000001
For this you just gotta multiple 400 times.000000001
User Burhan Ali
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