When a Metal Is Illuminated by Light,photoelectrons Are Observed Provided

question 24

Multiple Choice

When a metal is illuminated by light,photoelectrons are observed provided that the wavelength of the light is less than 520 nm.What is the metal's work function? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19 J)

• A)2.4 eV
• B)2.6 eV
• C)2.8 eV
• D)3.0 eV

---

Definitions:

Charitable Activity

Acts of giving or assistance to those in need, typically performed without expectation of payment or benefit to oneself.

Food Wastage

The act of squandering edible food items due to negligence, lack of awareness, or inefficiency throughout the supply chain from production to consumption.

Secret Sauce

An original or unique ingredient, technique, or factor that differentiates a product, service, or company from its competitors, often contributing to its success.

Social Change

The transformation of culture, behavior, social institutions, and social structures over time in a society.