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:

Perfect Substitutes

Goods or services that can be used in exact place of each other with no loss of utility to the consumer, often characterized by a constant marginal rate of substitution.

Production

The process of creating goods or services by combining various inputs like labor, raw materials, and machinery.

Marginal Productivity

Marginal productivity refers to the additional output that is produced by adding one more unit of a factor of production, holding all other factors constant.

Labor

Labor refers to the human effort, both physical and mental, used in the production of goods and services, forming a crucial component of the economic production process.