Electromagnetic Radiation and Electromagnetic Spectrum | X-ray physics | Radiology Physics Course #7

*High yield radiology physics past paper questions with video answers*
Perfect for testing yourself prior to your radiology physics exam 👇

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*I have also created two RADIOPAEDIA LEARNING PATHWAYS*

WHAT’S INCLUDED?
✅This YouTube series Ad free
✅Constantly updated Radiopaedia articles
✅Summary slides
✅Key take home bullet points throughout
✅Multiple review quizzes
✅Short answer review questions
✅Official Radiopaedia course completion certificate

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Electromagnetic waves can be plotted onto the electromagnetic spectrum depending on their wavelength. As wavelength decreases in an electromagnetic wave, the frequency of that wave increases. An increase in frequency is proportional to the increases in the waves energy. At certain frequencies this energy is sufficient to ionise atoms. This is known as ionising radiation.

Electromagnetic waves are transverse waves (in fact two orthogonal transverse waves) that are self propagating. This means they can travel in a vacuum. All electromagnetic waves travel at the speed of sound in a vacuum.

Experiments examining the photoelectric effect show wave acting as not only waves but also discrete quanta. This phenomenon is known as wave particle duality.

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*Not sure if the question banks are for you?*
If you're here, you're likely studying for a radiology physics exam. I've spent the last few months collating past papers from multiple different countries selecting the most commonly asked questions. You'll be surprised how often questions repeat themselves!

The types of questions asked in FRCR, RANZCR AIT, ARRT, FC Rad Diag (SA), ABR qualifying Core Physics and MICR part 1 are surprisingly similar and the key concepts remain the same throughout. I've taken the most high-yield questions and answered them in video format so that I can take you through why certain answers are correct and others are not.

Happy studying,
Michael

#radiology #radres #FOAMrad #FOAMed

[enobongette]

Thank you so much sir. Please could you do the Physics of CT as well?

[seyedmehdimousavi]

Your discussions deserve more than simple like, thank you

[alessandrasolinas]

Thanks from Italy. Rad tech student.

I have a hard time understanding the amplitude of the electromagnetic wave.
Does it represent multiple photons traveling together?

In the photoelectric effect the wave behaves like a particle, therefore at a given frequency if I remove one electron, at a double amplitude I'm going to remove 2 electrons?

[Nittaku]

I have some jumbled thoughts… wouldn’t amplitude have something to do with the energy of the wave? But then the higher frequency/smaller wavelength waves have higher energy. And another piece of the puzzle for me is the number of photons, does increasing the amplitude or the frequency increase the number of photons? Both?

[Nittaku]

Question about radiowaves. Over in the world of MRI, when we talk about the radiofrequency pulse, are we just effectively broadcasting radio waves? Or because we talk about an RF coil, does that mean we are turning the current to that coil on and off at a frequency that would happen to be the same frequency that happens to describe radio waves?

So I guess my question is about the nature of the RF pulse, and is the RF pulse simply a stream of electromagnetic radiation just as is being described in this lecture?

Thank you!!

[LightupIslam]

Ultraviolet radiations are ionizing or non ionizing?

[kickass]

Is CT physics course is comming up ?? And also nuclear medicine ??

[LolRoboShotU]

Does the question bank cover all the physics videos, or do you have to buy a question bank for each video?

[Aantriology]

can you please upload all the MRI physics videos ? they'll be of great help in exams!

[jamiedraper]

Hi, I’ve purchased your questions :) they’re great! I was wondering if you have a pdf document with them all on? So I can have them all in one place with the answers