Monochromatic Light Is Incident on a Metal Surface

Monochromatic light is incident on a metal surface.The ejected electrons give rise to a current in the circuit shown.The maximum energy of the ejected electrons is determined by applying a reverse ("stopping") potential,sufficient to reduce the current in the ammeter to zero. If the intensity of the incident light is increased,how will the required stopping potential change?

A) It will remain unchanged.
B) It will increase.
C) It will decrease.

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