Light of 4.5 eV is incident on a Cesium surface and stopping portential is 0.25 eV, maximum K.E. of emitted electrons is:

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Light of 4.5 eV is incident on a Cesium surface and stopping portential is 0.25 eV, maximum K.E. of emitted electrons is:

4.25 eV

4.5 eV

4.75 eV

0.25 eV

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