A Photon Is Emitted from a Galaxy with a Wavelength

question 13

Multiple Choice

A photon is emitted from a galaxy with a wavelength of 100 nm.By the time it reaches a telescope on Earth,the photon has a wavelength of 800 nm.By what factor has the Universe expanded between the photon's emission and detection?

• A) 2
• B) 4
• C) 8
• D) 16

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Definitions:

Territorial Space

The physical or conceptual area that an individual or group claims as their own, often marked and defended against encroachment.

Polyphasic Activity

A pattern of behavior in which multiple tasks or activities are undertaken simultaneously or in rapid succession.

Two-Way Communication

A process of exchanging information where both parties send and receive messages, allowing for feedback and interaction.

Barrier To Communication

Factors that impede the flow of information between individuals or groups, potentially leading to misunderstandings or conflicts.