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Energy of level 1,2,3 of a certain atom ...

Energy of level 1,2,3 of a certain atom corresponds to increasing value of energy `E_(1) lt E_(2) lt E_(3)` . If `lambda_(1) , lambda_(2)` and `lambda_(3)` are the wavelength of radiation corresponding to transition `3 rarr 2, 2 rarr1` and `3 rarr1` respectively. Which ofte following statement is `//` are correct ?

A

`(1)/(lambda_(3))= ( 1)/(lambda_(1))+(1)/(lambda_(2))`

B

`lambda_(3)= (lambda_(1) lambda_(2))/(lambda_(1)+lambda_(2))`

C

`(1)/(lambda_(2))= ( 1)/(lambda_(1))+(1)/(lambda_(3))`

D

`lambda_(2)= (lambda_(1) lambda_(3))/(lambda_(1)+lambda_(2))`

Text Solution

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The correct Answer is:
1,2
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