Dual Nature of ...

Photoelectric effect experiments are performed using three different metal plates p, q and r having work functions ϕp = 2.0 eV, ϕq = 2.5 eV and ϕr = 3.0 eV, respectively. A light beam containing wavelengths of 550 nm, 450 nm and 350 nm with equal intensities illuminates each of the plates. The correct I-V graph for the experiment is
(Take he = 1240 eV nm]

The stopping potential as a function of the frequency of the incident radiation is plotted for two different photoelectric surfaces A and B. The graphs show that work function of A is

The intensity of X-rays from a Coolidge tube is plotted against wavelength as shown in the figure. The minimum wavelength found is λ_c and the wavelength of the K_α line is λ_k. As the accelerating voltage is increased

The figure represents the observed intensity of X-rays emitted by an X-ray tube as a function of wavelength. The sharp peaks A and B denote

The graph between intensity of light falling on a metallic plate (I) with the current (i) generated is

For a photoelectric cell the graph showing the variation of cut off voltage (V₀) with frequency (v) of incident light is best represented by

The curve between current (i) and potential difference (V) for a photo cell will be

The correct curve between the stopping potential (V) and intensity of incident light (I) is

The value of stopping potential in the following diagram

In the following diagram if V₂ > V₁ then