In a photo-emissive cell, with exciting wavelength\[\lambda \], the ma – McqOptions

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1.	In a photo-emissive cell, with exciting wavelength\[\lambda \], the maximum kinetic energy of electron is K. If the exciting wavelength is changed to \[3\lambda /4\] the kinetic energy of the fastest emitted electron will be
A.	3K/4
B.	4K/3
C.	less than 4K/3
D.	greater than 4K/3
Answer» E.

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