Solve this:

Q2. (a) Plot a graph showing the variation of stopping potential (V₀) with frequency ($\nu$) of incident radiation. find its (i) slope and intercept on the potential Axis.

       (b) An electron is accelerated through a P.D of 64 volts. What is the de- Broglie wavelength associated with it. To which 220 part of electromagnetic spectrum does this correspond ?

       (c) An $\propto$- particle and a proton are accelerated by the same potential. Find the ratio of their de- Broglie Wavelength.