The Red Light from a HeNe Laboratory Laser Results from a Transition

question 33

Multiple Choice

The red light from a HeNe laboratory laser results from a transition in Ne.Determine the wavelength of the light given off if the energy difference between states is 1.96 eV.(h = 6.63 x 10^-34 J*s,c = 3.00 x 10⁸ m/s,1 eV = 1.60 x 10^-19 J,and 1 nm = 10^-9 m)

• A)575 nm
• B)601 nm
• C)634 nm
• D)652 nm

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Definitions:

Recessions

Episodes of brief economic downturn where business and manufacturing activities decline, usually signaled by a decrease in the GDP for two back-to-back quarters.

Aggregate Demand

Collective appetite for goods and services in an economic system, pegged at a particular comprehensive price level for a fixed time frame.

Short-Run Aggregate Supply

The total output of goods and services that firms in an economy are willing to produce at different price levels in the short term, holding some input prices fixed.

Classical Theory

An economic theory that emphasizes the ideas that free markets can regulate themselves through the laws of supply and demand, positing minimal government intervention.