Effect of Change of Potential difference applied to an X-Ray tube

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Homework Help Overview

The discussion revolves around the effects of changing the potential difference applied to an X-ray tube, specifically focusing on the emitted radiation's minimum wavelength and intensity. The subject area is Quantum Physics, particularly the behavior of X-rays in relation to potential difference and the Duane-Hunt law.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the relationship between potential difference and the minimum wavelength of emitted radiation, referencing the Duane-Hunt law. There is uncertainty regarding how the intensity of the emitted radiation is affected by changes in potential difference.

Discussion Status

The discussion is ongoing, with participants exploring the implications of the potential difference on both wavelength and intensity. There is a clear interest in understanding the theoretical aspects of X-ray emission without a definitive consensus on the intensity question.

Contextual Notes

Participants indicate that the discussion is theoretical and not based on practical lab work. There is mention of a textbook question that prompted the inquiry, highlighting the educational context of the discussion.

Bloopy
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I am a high school student, so I know only the basics of X-Rays.I simply know about continuous X-rays, cutoff wavelength and threshold wavelength. Now if I increase the potential applied to the X-ray tube, I am certain that the minimum wavelength of emitted radiation decreases. (I say this using λ=hc/eV, which is the Duane-Hunt law)

I am unsure about the intensity of emitted radiation. Does that change?
 
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Bloopy said:
I am a high school student, so I know only the basics of X-Rays.I simply know about continuous X-rays, cutoff wavelength and threshold wavelength. Now if I increase the potential applied to the X-ray tube, I am certain that the minimum wavelength of emitted radiation decreases. (I say this using λ=hc/eV, which is the Duane-Hunt law)

I am unsure about the intensity of emitted radiation. Does that change?
Is this a general question, or are you working with X-rays in the lab? X-ray safety is an important consideration when working with lab setups.
 
berkeman said:
Is this a general question, or are you working with X-rays in the lab? X-ray safety is an important consideration when working with lab setups.
As I said, I am in high school. There is no practical use of X-Rays. It is just the theoretical part. Actually, my textbook had a multiple choice question saying

"If we increase potential difference applied to an X-Ray tube, what of the following things will happen with the emitted radiation?
A. Intensity increases
B. Intensity decreases
C. Wavelength increases
D. Wavelength decreases.

Now, as I mentioned in the Original Post itself, I used the Duane-Hunt Law to mark the answer as D, which is obviously correct. Out of curiosity I wanted to know what would happen with the intensity. Since I myself did not have much knowledge regarding the issue, I decided not to put it under the homework section and just as a general question of Quantum Physics.
 
Bloopy said:
I decided not to put it under the homework section and just as a general question of Quantum Physics.
Do you have two threads about this? If so, I can merge them into one thread in the schoolwork forums. We do not allow cross-posting here, and we do not allow schoolwork posts ourtide of the schoolwork forums. Thanks.
 
berkeman said:
Do you have two threads about this? If so, I can merge them into one thread in the schoolwork forums. We do not allow cross-posting here, and we do not allow schoolwork posts ourtide of the schoolwork forums. Thanks.
No, I didn't create two threads. Just this one.
 

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