Calculate the Frequency of the Light Emitted by a Hydrogen

question 26

Multiple Choice

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 6 to the n = 3 principal energy level.Recall that for hydrogen E_n = -2.18 × 10^-18 J(1/n²) .

• A)1.82 × 10^-19 /s
• B)9.13 × 10¹³ /s
• C)2.74 × 10¹⁴/s
• D)3.65 × 10¹⁴ /s
• E)1.64 × 10¹⁵ /s

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Definitions:

Ex Post Facto Design

Ex Post Facto Design is a research approach where investigators study variables after the events have occurred, analyzing the effects of naturally occurring differences without manipulation.

Correlational Study

A research method that examines the relationship between two or more variables to determine if a change in one is associated with a change in others.

Retrospective Study

A research design that looks back in time to analyze data from past records to investigate a particular outcome or phenomenon.

Prospective Study

A research design that follows participants forward in time to examine the relationship between specific exposures and outcomes.