The Wavelength of the Emitted Photon If an Electron in the Hydrogen

question 4

Multiple Choice

The wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 2 state to the ground state is closest to which of the following values? (c = 3.0 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19 J)

• A)122 nm
• B)203 nm
• C)243 nm
• D)389 nm
• E)411 nm

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Definitions:

Variable Costing

An accounting method that considers only the variable costs directly attributable to the production of goods, excluding fixed manufacturing costs from inventory valuation.

Unsold Units

Inventory items that were not sold during a specific period and are carried over to the next period.

Operating Efficiency

A measure of how well a company uses its resources to produce outputs, often assessed by comparing inputs to outputs in production processes.

Absorption Costing

An accounting method that includes all manufacturing costs, direct and indirect, in the cost of a product.