Platinum, Which Is Widely Used as a Catalyst, Has a Work

question 57

Multiple Choice

Platinum, which is widely used as a catalyst, has a work function  (the minimum energy needed to eject an electron from the metal surface) of 9.05 × 10^-19 J. What is the longest wavelength of light which will cause electrons to be emitted?

• A) 2.196 × 10^-7 m
• B) 4.553 × 10^-6 m
• C) 5.654 × 10² m
• D) 1.370 × 10¹⁵ m
• E) > 10⁶ m

---

Definitions:

Herzberg's Two Factors

A theory that suggests job satisfaction and dissatisfaction are influenced by two independent sets of factors—motivators (such as achievement and recognition) and hygiene factors (such as salary and working conditions).

Dissatisfiers

Factors related to work or the workplace environment that can lead to dissatisfaction among employees, potentially affecting their job performance and overall morale negatively.

Satisfiers

Factors that contribute to job satisfaction, often related to the intrinsic aspects of the job that motivate employees.

Expectancy Theory

A motivational theory suggesting that an individual's motivation is based on their expected outcomes of their actions.