A Metal Having a Work Function of 2

question 2

Multiple Choice

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:

Internal Colonialism

A concept explaining how a country's dominant group exploits minority groups for its economic advantage, maintaining social, economic, and political dominance.

Indigenous Peoples

Ethnic groups who are the original inhabitants of a given region, maintaining traditions or other aspects of early culture associated with those regions.

Ukrainians

A East Slavic ethnic group native to Ukraine, sharing a common culture and history.

Genocide

The deliberate and systematic extermination of a national, racial, political, or cultural group.