Answer
The second metal has a smaller work function than the first one.
Work Step by Step
Photons of longer-wavelength light have lower energy. Electrons in the second metal more easily escape the surface.
Physics: Principles with Applications (7th Edition)
by Giancoli, Douglas C.
Published by
Pearson
ISBN 10:
0-32162-592-7
ISBN 13:
978-0-32162-592-2
Chapter 27 - Early Quantum Theory and Models of the Atom - Questions - Page 797: 5
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