The graph of stopping potential V₀ vs frequency ν of incident light fo…

Question

The graph of stopping potential V₀ vs frequency ν of incident light for a given metal is

Accepted Answer

C. {'text': 'A straight line with positive slope of h over e', 'label': 'C'}

1. NCERT shows the V₀ vs ν plot is a straight line for a given metal.
2. Slope of the line is h/e (Planck constant over electron charge).
3. The line intercepts the ν-axis at the threshold frequency ν₀.
4. Below ν₀, no photoemission occurs — so V₀ = 0.
_Source: NCERT Class 12 Physics, Ch 11 "Dual Nature of Radiation and Matter", §11.4.3_

Answer

{'text': 'A parabola opening upward with vertex at origin', 'label': 'A'}

Answer

{'text': 'A rectangular hyperbola through the first quadrant', 'label': 'B'}

Answer

{'text': 'A horizontal line unaffected by change of frequency', 'label': 'D'}