UV light with a wavelength of 180 nm is incident on a metal and electrons are ejected.

Question:

UV light with a wavelength of 180 nm is incident on a metal and electrons are ejected. Instead of determining the maximum kinetic energy of the electrons with a stopping potential, the maximum kinetic energy is determined by injecting the electrons into a uniform magnetic field that is perpendicular to the velocity of the electrons. For a certain metal, the electrons with maximum kinetic energy follow a path with a radius of 6.7 cm in a magnetic field of 7.5 × 10−5 T. 

(a) What is the work function for this metal? 

(b) Do electrons with maximum kinetic energy follow a path with the maximum or minimum radius?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Question Posted: