Hydrogen Emits Light at Certain Discrete Frequencies

question 37

Multiple Choice

Hydrogen emits light at certain discrete frequencies. One particular emission has a frequency of 4.57 × 10¹⁵ s^-1, as measured in the frame of reference of the hydrogen atom. Light from this emission is observed coming from a star that is moving away from Earth at 0.900c. What is the observed frequency? Note that, in addition to time dilation, one must take into account that successive wavefronts have to travel longer distances because the star is moving away (Doppler Effect) .

• A) 1.99 × 10¹⁵ s^-1
• B) 7.62 × 10¹⁵ s^-1
• C) 1.99 × 10¹⁶ s^-1
• D) 1.05 × 10¹⁵ s^-1
• E) 0.90 × 10¹⁵ s^-1

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Definitions:

Adaptive Organizations

Companies that can quickly adjust to changes in the environment or market to maintain competitiveness.

Organic Designs

Organizational structures that emphasize adaptability, with teams or individuals having wide-ranging tasks and roles that evolve based on the project needs and external environment.

Decentralized Authority

A system where decision-making powers are distributed throughout various levels in an organization, rather than being concentrated at a single point.

Flat Structures

An organizational structure with few or no levels of middle management between staff and executives, promoting more direct communication.