A Beam of White Light of a Certain Frequency Is

question 32

Multiple Choice

A beam of white light of a certain frequency is incident on a metal surface. If the work function of this surface is 2.20 eV, what frequency of light would give a maximum kinetic energy of 0.25 eV to the photoelectrons ejected from this surface?

• A) 2.05 × 10¹⁴ Hz
• B) 1.02 × 10¹⁴ Hz
• C) 2.50 × 10¹⁴ Hz
• D) 3.53 × 10¹⁴ Hz
• E) 5.92 × 10¹⁴ Hz

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