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Two identical metal plates show photoele...

Two identical metal plates show photoelectric effect. Light of wavelength `lamda_A` falls on plate A and `lamda_B` fall on plate B and `lamda_A=2lamda_B`, The maximum KE of the photoelectrons are `K_A` and `K_B`, respectively, Which one of the following is true?

A

`K_A = 2K_B`

B

`K_Agtfrac{K_B}{2}`

C

`2K_A = K_B`

D

`K_Altfrac{K_B}{2}`

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