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The wavelength of a beam of light is 589...

The wavelength of a beam of light is `5894 Ã…`. Express the value in nanometers.

Text Solution

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`1Ã…=10^(-10)m=10^(-10)xx10^(9)nm=10^(-1)nm" "[because1m=10^(9)mm]`

Conversion factor `= ((10^(-1)nm))/((1Ã…))`
`5894 Ã… = 5894 Ã… xx` Conversion factor `= (6894Ã…)xx((10^(-1)nm))/((1Ã…))=589.4 nm`.
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