How is 500 nanometres expressed in metres? - PHYSICS AND MEASUREMENT Quiz | GKFix.in

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Question

How is 500 nanometres expressed in metres?

A. 5 × 10⁻⁶ m
B. 5 × 10⁻⁷ m
C. 5 × 10⁻⁸ m
D. 5 × 10⁻⁹ m

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