For a certain metal

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

Problem

For a certain metal, the stopping potential is 1.5 V1.5\,\text{V} when irradiated with light of frequency 7.0×1014 Hz7.0\times10^{14}\,\text{Hz}. What frequency of light would produce a stopping potential of 3.0 V3.0\,\text{V} for the same metal? (Use h/e=4.14×10−15 eV sh/e = 4.14\times10^{-15}\,\text{eV s}.)

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