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At one time, the metre was defined as 16...

At one time, the metre was defined as 1650763.73 wavelengths of the orange light emitted by a light source containing `Kr^(86)` atoms. What is the corresponding photon energy of this radiation?

A

`3.28 xx 10^(-19)` J/quanta

B

`1.204 xx 10^(-31)` J/quanta

C

`1.09xx10^(-27)` J/quanta

D

`4.01 xx 10^(-40)` J/quanta

Text Solution

Verified by Experts

The correct Answer is:
A
Given, `bar(v)=1650763.73m^(-1)`
Now, `E=hcbar(v)`
`=(6.626xx10^(-34))xx(3xx10^(8))xx1650763.73`
`=3.28 xx10^(-19)J//"quanta"`
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