Calculate Wavelength of 3.85 MeV Gamma Radiation from Technetium-99

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Homework Help Overview

The discussion revolves around calculating the wavelength of gamma radiation emitted by technetium-99, specifically for a photon with an energy of 3.85 MeV. Participants are exploring the relationship between energy and wavelength in the context of electromagnetic waves.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • The original poster expresses uncertainty about how to begin the problem. Some participants suggest referring to textbook material on energy and wavelength relationships. Others mention the equation E=hc/λ and inquire about the meanings of the symbols involved and the importance of units in calculations.

Discussion Status

The discussion is in an exploratory phase, with participants seeking to clarify concepts and definitions. Guidance has been offered to refer to relevant textbook sections and to think critically about the equation and its components.

Contextual Notes

The original poster indicates a lack of understanding of how to approach the problem, which may reflect constraints in their prior knowledge or familiarity with the topic.

missy~needs~help
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Okay so I have this question...

A photon of gamma radiation emitted by the radioactive decay of technetium-99 has an energy of 3.85 MeV. This radiation has a wavelength of

a) 5.17x10^-26m
b) 3.23x10^-13m
c) 3.10x10^12m
d) 9.29x10^20m

Can anyone explain it...no idea how to even start it!:confused:
 
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Turn to the page on your text that first talks about energy and wavelength relationships for EM waves. Tell us what you find and how you plan to proceed.

We can't help you unless you help yourself. Please read the guidelines for posting in this forum.
 
I figure...that it has something to do with
E= hc/T
 
That's a start.

What do the various symbols in that equation represent?

And secondly what have you learned about units when it comes to solving equations?
 

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