Photoelectric Effect: a Metal Having a Work Function of 2

question 69

Multiple Choice

Photoelectric effect: A metal having a work function of 2.5 eV is illuminated with white light that has a continuous wavelength band from 400 nm to 700 nm. For which one of the following ranges of the wavelength band in this white light are photoelectrons NOT produced? (h = 6.626 × 10^-34 J ∙ s, c = 3.00 × 10⁸ m/s, 1 eV = 1.60 × 10^-19 J)

• A) 500 nm to 700 nm
• B) 400 nm to 560 nm
• C) 500 nm to 560 nm
• D) 400 nm to 500 nm
• E) 560 nm to 700 nm

---

Definitions:

Accrued Revenues

Revenues that have been earned but not yet received in cash or recorded by the company.

Earned

Earned refers to revenues or incomes that have been generated through business activities or provided services within a certain period.

Accumulated Depreciation

The total depreciation of an asset up until a single point in time, showing how much of its value has been used up.

Balance Sheet

A financial statement that summarizes a company’s assets, liabilities, and shareholders' equity at a specific point in time, offering a snapshot of its financial health.