PHYSICS · Single correct · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter
Problem
Material X has a threshold wavelength of 300nm, whereas Material Y has a threshold wavelength of 500nm. Which statement about their work functions is most accurate?
(a) Material Y has a larger work function than Material X.
(b) Material X and Material Y have the same work function.
(c) Material X has a larger work function than Material Y.
(d) The work functions cannot be compared using threshold wavelength information alone.