1.

A cathode of a photo electric cell is changed such that the work function changes from W_(1) to W_(2)(W_(1)ltW_(2)) if the current before and after changes are I_(1) and I_(2) all other conditions remaining unchanged, then (assuming hVgtW_(2) )

Answer»

`I_(1)=I_(2)`
`I_(1)ltI_(2)`
`I_(1)gtI_(2)`
`I_(1)ltI_(2)lt2I_(1)`

ANSWER :A


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