1.

If k_1 and k_2 are maximum kinetic energies of photoelectrons emitted when lights of wavelengths lamda_1 and lamda_2 respectively incident on a metallic surface and lamda_1 = 3 lamda_2, then :

Answer»

`k_1 GT (k_2/3)`
`k_1 LT (k_2/3)`
`k_1 = 2k_2`
`k_2 = 2k_1`

ANSWER :B


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