Q11 · 2022 · Paper 1Simple familiar1 mark
QUESTION 11
The maximum kinetic energy of an electron ejected from a metallic surface can be increased by
(A)
using a positively ionised metal.
(B)
using a metal with a larger work function.
(C)
increasing the intensity of the incident light.
(D)
decreasing the wavelength of the incident light.
WORKED SOLUTION
1 markAnswer D
ANSWER
D
Worked solution
. Decreasing wavelength increases frequency and therefore increases the maximum photoelectron kinetic energy. Option D.
Selects option D.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.