Question

if wavelength of a wave is 6750nm. convert it to kilometre

Answer 1

Hi friend here is your answer.

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6750 nm

= 6750 ×10^-9 m

=6750×10^-12×10^3 m

=6750 ×10^-12 km

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Answer 2

6750nm= 6.75 ×10^-9 km

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