Biophysique Test

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Biophysique Test

 

1 / 60

What does a sound intensity of 120-130 dB correspond to?

2 / 60

What is the term for the volume flow rate of blood pumped by the heart?

3 / 60

What is the correct order of how sound travels through the ear?

4 / 60

Why is volume flow rate important in the respiratory system?

5 / 60

What does the volume flow rate (Q) measure?

6 / 60

Where are sound vibrations converted into electrical signals?

7 / 60

What type of wave is sound when traveling through air?

8 / 60

Where in the ear does the amplification of sound primarily occur?

9 / 60

What happens when the pressure inside the middle ear is lower than the external air pressure?

10 / 60

On s’intΓ©resse Γ  l’étude de la rΓ©action nuclΓ©aire ci-dessous. Donnez la valeur du nombre atomique (Z) de particule Ξ±.

11 / 60

Quelle est la dΓ©sintΓ©gration beta plus qui a lieu lors de l’atome radioactive se transforme
spontanΓ©ment en autre atome ?

12 / 60

On s’intΓ©resse Γ  l’étude la dΓ©sintΓ©gration Ξ², un proton se transforme en neutron dans le noyau selon la rΓ©action
suivante. Γ‰crivez l’équation de conservation de la charge.

13 / 60

On considΓ¨re de la diffusion Compton d’un photon d’énergie h sur un Γ©lectron au repos. Soit h’ l’énergie du photon
aprΓ¨s qu’il soit diffusΓ© d’un angle . Quelle est l’équation de conservation de l’énergie, si l’angle 0 ?

14 / 60

Quelles sont les Γ©nergies principales qui ont lieux lors de l’annihilation de la paire positron-
Γ©lectron ?

15 / 60

Les transitions isomΓ©riques aprΓ¨s dΓ©sintΓ©grations bΓͺta moins de l’isotope 60 de Cobalt. Quelle est
l’énergie libΓ©rΓ©e est Γ©mise sou forme d’un photon 1 ?

16 / 60

On s’intΓ©resse Γ  l’étude de la rΓ©action nuclΓ©aire ci-dessous. Donnez la valeur de la charge (Z) de particule Ξ² ?

17 / 60

On s’intΓ©resse Γ  l’étude de la rΓ©action nuclΓ©aire ci-dessous. Donnez la valeur leptonique de particule Ξ² ?

18 / 60

On s’intΓ©resse Γ  l’étude de la rΓ©action nuclΓ©aire ci-dessous. Donnez la valeur de la charge (Z) de n ?

19 / 60

On s’intΓ©resse Γ  l’étude de la rΓ©action nuclΓ©aire ci-dessous. Donnez la valeur leptonique de n ?

20 / 60

Quelle est la dΓ©sintΓ©gration alpha qui a lieu lors de l’atome radioactive se transforme
spontanΓ©ment en autre atome ?

21 / 60

D’aprΓ¨s la dΓ©sintΓ©gration Ξ±, par exemple, le radium 226 se transforme spontanΓ©ment en l’élΓ©ment Y en Γ©mettant d’un
noyau d’hΓ©lium. Donnez la valeur du nombre de masse (A) du noyau Y de la voie de sortie. 226Ra88 Y 4He2

22 / 60

On s’intΓ©resse Γ  l’étude de la rΓ©action nuclΓ©aire ci-dessous. Γ‰crivez la conservation de charge lors de la rΓ©action.

23 / 60

On considΓ¨re de la diffusion Compton d’un photon d’énergie h sur un Γ©lectron au repos. Soit h’ l’énergie du photon
aprΓ¨s qu’il soit diffusΓ© d’un angle . Quelles est l’équation de conservation de l’énergie, si l’angle ?

24 / 60

On s’intΓ©resse Γ  l’étude la dΓ©sintΓ©gration Ξ², un neutron se transforme en proton dans le noyau selon la rΓ©action
suivante. Γ‰crivez l’équation de conservation du nombre baryonique.

25 / 60

Quelle est la dΓ©sintΓ©gration par capture Γ©lectronique qui a lieu lors de l’atome radioactive se
transforme spontanΓ©ment en autre atome ?

26 / 60

On s’intΓ©resse Γ  l’étude la dΓ©sintΓ©gration Ξ², un neutron se transforme en proton dans le noyau selon la rΓ©action
suivante. Γ‰crivez l’équation de conservation de la charge.

27 / 60

A 35-year-old female presents with sudden onset of severe headaches, visual disturbances, and nausea. The physician suspects a possible brain tumor and considers ordering an MRI.

3. Which of the following is an indication for performing an MRI in this clinical case?

28 / 60

A 65-year-old female with a history of breast cancer presents with new onset of back pain. The physician considers ordering an MRI to evaluate for possible metastasis.

5. Which of the following is a disadvantage of using MRI in this clinical case, particularly related to cost?

29 / 60

A 40-year-old male presents with persistent knee pain following a sports injury. The physician orders an MRI to assess the extent of the damage to the soft tissues and cartilage.

6. Which of the following components of the MRI machine is primarily responsible for generating the magnetic field used in this clinical case?

30 / 60

A 55-year-old male with a history of chronic kidney disease presents with worsening lower back pain. The physician considers ordering an MRI to evaluate the cause of the pain.

4. Which of the following is a disadvantage of using MRI in this clinical case?

31 / 60

A 45-year-old male presents with persistent lower back pain radiating to his left leg. The pain has not improved with conservative treatments such as physical therapy and medication. The physician suspects a herniated disc and orders an MRI to confirm the diagnosis.

1. Which of the following is an advantage of using MRI in this clinical case?

32 / 60

A 60-year-old female with a history of severe headaches and dizziness is referred for an MRI to rule out any intracranial pathology. During the pre-MRI screening, it is discovered that she has a pacemaker implanted.

2. Which of the following is a contraindication for performing an MRI in this clinical case?

33 / 60

A 70-year-old male patient with a history of obesity is referred for an echocardiogram. Which of the following is a limitation of echography in this patient?

34 / 60

What is the boundary between two different media where reflection and refraction occur?

35 / 60

The reflection at the smooth surface is…………………?

36 / 60

The part of ultrasound which transmit and receive sound is called…………?

37 / 60

The lateral resolution is proportionally affected by………………?

38 / 60

The ability to resolve objects that lie one above the other is called…………….?

39 / 60

An ultrasound image has lower spatial resolution but greater depth of penetration is given by…?

40 / 60

The axial resolution is inversely proportional affected by………………?

41 / 60

An image of ultrasound has higher spatial resolution but less depth of penetration is given by …?

42 / 60

What is the number of cycles per unit of time?

43 / 60

Ultrasound is the most commonly used diagnostic imaging modality, accounting for approximately……of all imaging examinations performed worldwide nowadays.

44 / 60

Please select types of ultrasound image resolution correctly.

45 / 60

What is the portion of a sound that is returned from the boundary of a medium?

46 / 60

What is the distance between the onset of peak compression or cycle to the next?

47 / 60

Select a material which has the lowest attenuation coefficient(dB/cm)?

48 / 60

Linear Array probe, Curved probe, Phrased array probe are three types of ……………?

49 / 60

What is unit of sound beam attenuation?

50 / 60

What is the frequency range of diagnostic imaging using ultrasound?

51 / 60

What is the application of doppler ultrasound?

52 / 60

What is the main component of transducer?

53 / 60

What is the change of sound direction on passing from one medium to another?

54 / 60

Dans une expΓ©rience de laboratoire, on expose une feuille d’aluminium Γ  des photons X de 60 keV. Que reprΓ©sente le coefficient d’attΓ©nuation linΓ©ique (ΞΌ) dans ce contexte ?

55 / 60

En radiothΓ©rapie, un plan de traitement est Γ©tabli Γ  l’aide d’un scanner dosimΓ©trique. Le faisceau de traitement est ensuite dΓ©fini par un collimateur multilames. Quel appareil produit un faisceau de rayons X de haute Γ©nergie (> 6 MeV) en radiothΓ©rapie moderne ?

56 / 60

Un technicien allume un gΓ©nΓ©rateur Γ  rayons X Γ  100 kV pour une radiographie thoracique. D’oΓΉ proviennent les rayons X ?

57 / 60

Un physicien mΓ©dical mesure une activitΓ© de 3,7 Γ— 10⁹ Bq autour d’une source de Cobalt-60. Quel type de rayonnement nΓ©cessite la plus grande Γ©paisseur de protection ?

58 / 60

Un manipulateur en mΓ©decine nuclΓ©aire prΓ©pare une dose de 99mTc pour une scintigraphie osseuse. Ce radionuclΓ©ide Γ©met un photon Ξ³ de 140 keV. Quelle est la nature de cette Γ©mission ?

59 / 60

Un manipulateur en mΓ©decine nuclΓ©aire prΓ©pare une dose de 99mTc pour une scintigraphie osseuse. Ce radionuclΓ©ide Γ©met un photon Ξ³ de 140 keV. Quelle prΓ©caution principale doit prendre le manipulateur lors de la prΓ©paration du 99mTc ?

60 / 60

En radiothΓ©rapie, un plan de traitement est Γ©tabli Γ  l’aide d’un scanner dosimΓ©trique. Le faisceau de traitement est ensuite dΓ©fini par un collimateur multilames. Quel est le rΓ΄le du collimateur multilames ?

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