What Is the Longest Wavelength of Light That Can Cause

question 5

Multiple Choice

What is the longest wavelength of light that can cause photoelectron emission from a metal that has a work function of 2.20 eV? (1 eV = 1.60 × 10^-19 J,c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s)

• A)417 nm
• B)257 nm
• C)344 nm
• D)565 nm
• E)610 nm

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Definitions:

Pure Strategy Equilibria

A scenario in game theory where each player chooses one strategy, and no player can benefit by changing strategies while the other players keep their strategies unchanged.

Swerve

To change direction abruptly, often used in driving contexts to avoid an obstacle or collision.

Drive Straight

The action or process of moving a vehicle forward in a direct line without turning.

Nash Equilibrium

A concept within game theory where each player's strategy is optimal given the strategies of all other players, and no player has anything to gain by changing only their own strategy unilaterally.