Question 37
The work function of a metal is 2.56 x 10-19J. Calculate the frequency of a photon whose energy is required to eject from the metal an electron with kinetic energy of 3.0ev. [1 eV = 1.6 x 10-19J, h = 6.6 x 10-34Js]
Objective
Question details
- Exam body
- WAEC
- Subject
- Physics
- Year
- 2013
- Question no.
- #37
- Type
- Objective
More from this paper
- Q33Which of the following instruments is used to determine the accurate value of…
- Q34The capacitance of parallel plates capacitors varies
- Q35Which of the following devices does not makes use of eddy current for its…
- Q39Which of the following particles are termed nucleons in a neutral atom?
- Q40Which of the following statements about the use of radioisotopes is not correct?…
- Q41Which of the following phenomena supports the theory that waves have a particle…