The stopping potential V for photoelectric emission from a metal surface is plotted along Y-axis and frequency n of incident light along X-axis. A straight line is obtained as shown. Planck's constant is given by [CPMT 1987; Similar to MP PMT 2000; Kerala PET 2001]

Product of intercept along Y-axis and mass of the electron

Product of slope on the line and charge on the electron

Product of Slope and mass of electron

The stopping potential V for photoelectric emission from a metal surfa

1.	The stopping potential V for photoelectric emission from a metal surface is plotted along Y-axis and frequency n of incident light along X-axis. A straight line is obtained as shown. Planck's constant is given by [CPMT 1987; Similar to MP PMT 2000; Kerala PET 2001]
A.	Slope of the line
B.	Product of slope on the line and charge on the electron
C.	Product of intercept along Y-axis and mass of the electron
D.	Product of Slope and mass of electron
Answer» C. Product of intercept along Y-axis and mass of the electron