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Q .     `A` and `B` are two metals with threshold frequencies `1.8\times 10^{14}\Hz` and `2.2\times 10^{14}\Hz`. Two identical photons of energy `0.825\eV` each are incident on them. Then photoelectrons are emitted by:

(Taking `h=6.626\times 10^{-34}\Js`)

BITSAT 2012
A

`B` alone

B

`A` alone

C

Neither `A` nor `B`

D

Both `A` and `B`

HINT

`E/h=nu` `nu=` Threshold frequency
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