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The wavelengths of Kalpha X-rays from l...

The wavelengths of `K_alpha` X-rays from lead isotopes `Pb^(204) , Pb^(206) and Pb^(208)` are `lambda_1, lambda_2 and lambda_3` respectively. Choose the correct alternative.

A

`lamda_(1)=lamda_(2)=lamda_(3)`

B

`lamda_(1)gtlamda_(2)gtlamda_(3)`

C

`lamda_(1)ltlamda_(2)ltlamda_(3)`

D

`lamda_(2)=sqrt(lamda_(1)lamda_(3))`

Text Solution

Verified by Experts

The correct Answer is:
A, D
`lamda_(K_(2))=(4)/(3R(Z-1)^(2))`
`lamda_(1)=lamda_(2)=lamda_(3)`
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