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The wavelength of a light is of the orde...

The wavelength of a light is of the order of `6400 Å`. Express this in micron and metre.

A

`0.64` micron

B

0.84 micron

C

0. 24 micron

D

0. 34 micron

Text Solution

Verified by Experts

The correct Answer is:
A
As, `1 Å=10^(-10)`
`:.` Wavelength of light `=6400 Å=6400xx10^(-10)m=6.4xx10^(-7)m`
Also 1 micron`=10^(-6)`metre
Wavelength of light (in micron) `=(6.4xx10^(-7))/(10^(-6))`micron `=0.64` micron
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