Two metals X and Y have threshold frequencies and respectively
PHYSICS · Multi-part · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter
Problem
Two metals X and Y have threshold frequencies ν0X=4.0×1014Hz and ν0Y=5.5×1014Hz respectively. Monochromatic light of variable frequency is used to study their photoelectric characteristics under identical conditions.
(a) Draw the two straight-line plots of V0 versus ν for metals X and Y on the same axes, marking their threshold frequencies.
(b) Identify the metal with the higher work function and explain how the graph leads to this conclusion.
(c) Compute ΔV0 for ν=6.0×1014Hz.