1.

In a Bohr's model of atom when an electron jumps from n=1 to n=3 , how much energy will be emitted or absorbed

Answer»

`2.15xx10^(-11)` ERG
`0.1911xx10^(-10)` erg
`2.389xx10^(-12)` erg
`0.239xx10^(-10)` erg

Solution :According to Bohr's model `DeltaE=E_1-E_3`
`=2.179xx10^(-11)-(2.179xx10^11)/9`
`=8/9xx2.179xx10^(-11)=1.91xx10^(-11)=0.191xx10^(-10) ` erg
Since ELECTRON is GOING from n=1 to n=3 HENCE energy is absorbed


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