Atoms Doubt
The question is as follows:
A platinum surface having work function 5.63 eV is illuminated by a monochromatic source of 1.6 x 10^15 Hz. What will be the minimum wavelength associated with the ejected electron.In the solution, they have used K.E. of electron=hc/lambda which shouldn't be correct as this relation is for pure waves, where rather rest mass is zero, so they should have solved it by h/sqrt(2m(K.E.)) Am I correct?

5 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2...
to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.yeah you are correct hc/lambda you can use only when rest mass is 0
Ah. Mb the sample paper got it wrong.
+solved @hithav
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