Physics · JEE | Dual Nature of Radiation and Matter

The slope of the straight-line graph plotted between the stopping potential \( V_0 \) and the frequency of incident radiation \( \nu \) for a given photosensitive material is equal to:

1. A
   \( \frac{\phi_0}{e} \)
2. B
   \( \frac{e}{h} \)
3. C
   \( h e \)
4. D
   \( \frac{h}{e} \)