A silver ball is suspended by a string in a vacuum chamber

PHYSICS · Subjective · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter

Problem

A silver ball is suspended by a string in a vacuum chamber, and ultraviolet light of wavelength

2000\,\text{\AA}

is directed at it. What electrical potential will the ball acquire as a result? The work function of silver is

4.3\,\mathrm{eV}