An Atom in Its Ground State Absorbs a Single Photon

question 150

Multiple Choice

An atom in its ground state absorbs a single photon of light and then relaxes back to the ground state by emitting an infrared photon (1,200 nm) followed by an orange photon (600 nm) . What is the wavelength of the photon that was absorbed initially?

• A)600 nm
• B)1,200 nm
• C)1,800 nm
• D)900 nm
• E)400 nm

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Definitions:

Accumulated Depreciation

The complete value of a physical asset's price that has been charged as an expense from the time the asset started being utilized.

Contra Asset Account

A type of account that reduces the total value of a related asset account on a company's balance sheet.

Asset-Expense Relationship

The correlation between a company's assets and expenses, indicating how asset utilization incurs costs.

Prepaid Expense Adjusting Entries

Journal entries made at the end of an accounting period to account for expenses paid in advance but which relate to future accounting periods.