If the Work Function of Thoriated Tungsten Is 4 $\times$ 10^-19 J,the Longest Wavelength of Light That Will Cause Photoelectrons

question 52

Multiple Choice

If the work function of thoriated tungsten is 4 $\times$ 10^-19 J,the longest wavelength of light that will cause photoelectrons to be emitted is approximately

• A)880 nm
• B)400 nm
• C)495 nm
• D)700 nm
• E)181 nm

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Definitions:

Pricing Strategies

Plans or methods used by businesses to set prices for their products or services in order to maximize profitability and market share.

Pure Competition

A market structure characterized by a large number of small firms, a homogeneous product, and free entry and exit which leads to price taking behavior.

Barriers To Entry

Elements that obstruct or impede the ability of businesses to penetrate a particular market or sector.

Elasticity Coefficient

The elasticity coefficient measures how much the quantity demanded or supplied of a good responds to a change in one of its determinants, such as price, income, or the price of related goods.