In the following diagram if ${\mathrm{V}}_2>{\mathrm{V}}_1$, then,

(1) ${\mathrm{\lambda }}_1=\sqrt{{\mathrm{\lambda }}_2}$

(2) ${\mathrm{\lambda }}_1<{\mathrm{\lambda }}_2$

(3) ${\mathrm{\lambda }}_1={\mathrm{\lambda }}_2$

(4) ${\mathrm{\lambda }}_1>{\mathrm{\lambda }}_2$

A point source of light is used in an experiment on photoelectric effects. Which of the following curves best represents the variation of photocurrent \((i)\) with distance \((d)\) of the source from the emitter?

The stopping potential \((V_{0})\) versus frequency \((\nu_{0})\) plot of a substance is shown in the figure. What will be the threshold wavelength?    
         

The dependence of the short wavelength limit ${\mathrm{\lambda }}_{\min }$ on the accelerating potential V is represented by the curve of figure:

1. A
2. B
3. C
4. None of these

The curves (a), (b) (c) and (d) show the variation between the applied potential difference (V) and the photoelectric current (i), at two different intensities of light ( ${\mathrm{I}}_1>{\mathrm{I}}_2$). In which figure is the correct variation shown ?

The value of stopping potential in the following diagram is given by:
    

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 demonstrate that \(A\)'s work function is: