The wavelength of photons in two cases are 4000 A and 3600 A respectively what is difference in stopping potential for these two? (Give solution using formula)

Eshan
4 years ago
Dear student,

Stopping potential for an incoming photon is equal to the energy of it per unit charge.

Hence stopping potential ofphoton is

Hence stopping potential of photon is
Hence the required difference=0.34V
ANJALI KUMARI
15 Points
3 years ago
In 1st case : stopping potential=12400/4000=3.1ev.                                    In 2nd case : stopping potential=12400/3600=3.44ev                                   Difference=3.44- 2.06=0.34ev