A Beam of Light with a Frequency Range of 3

question 9

Multiple Choice

A beam of light with a frequency range of 3.01 × 10¹⁴ Hz - 6.10 × 10¹⁴ Hz is incident on a metal surface. If the work function of the metal surface is 2.20 eV, what is the maximum kinetic energy of photoelectrons ejected from this surface?

• A) 0.32 eV
• B) 0.21 eV
• C) 0.42 eV
• D) 0.16 eV
• E) 0.48 eV

---

Definitions:

Downsloping

Characteristic of a demand curve, indicating that as the price decreases, the quantity demanded increases, assuming all other factors remain constant.

Pure Competition

A market structure characterized by a large number of small firms, homogenous products, and free entry and exit, leading to perfect competition.

Nonprice Competition

A strategy where businesses focus on improving product quality, promoting innovation, or providing exceptional service instead of lowering prices to compete.

Differentiated Products

Goods or services that are distinguished from similar products by quality, features, branding, or customer service, allowing them to compete apart from price alone.