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The wavelength of a radiation is 643.5 n...

The wavelength of a radiation is 643.5 nm. Find its wavelength in SI unit.

Text Solution

Verified by Experts

We know, 1nm`=10^(-9)m`
`therefore` Unit conversion factor`=(10^(-9)m)/(1nm)`
So, wavelength of the radiation`=643.5nm`
`=6.43.5nmxx(10^(-9)m)/(1nm)=6.435xx10^(-7)m`
[Here, we choose the conversion factor that has nm in the denominator]
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