Physics

The wavelength of light is 589 nm. What is its order of magnitude in metre?

SOLUTION
1 nm is $1\times { 10 }^{ -9 }m$.
So, $589nm = 5.89\times1\times { 10 }^{ 2 }\times { 10 }^{ -9 }m$.
Hence its magnitude in m is ${ 10 }^{ -7 }m$

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Subjective Medium Published on 18th 08, 2020
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