BME403 Biophysics B.Tech Question Paper : wbut.ac.in
Name of the University : West Bengal University of Technology
Department : Biomedical Engineering
Degree : B.Tech
Sem : IV
Subject Code/Name : BME-403/Biophysics
Website : wbut.ac.in
Document Type : Previous Year Examination Question Paper
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2009 : https://www.pdfquestion.in/uploads/qpaper.wbut.ac.in/6501-2009BME-403.pdf
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Biophysics Question Paper :
Engineering & Management Examinations, June – 2009 :
Semester – 4
Time : 3 Hours
Full Marks : 70
Related : West Bengal University of Technology BME402 Biomechanics B.Tech Question Paper : www.pdfquestion.in/6499.html
GROUP – A : ( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10 × 1 = 10
i) Which of the following is not a radio isotope ?
ii) Which of the following is an ultrasonic wave detector ?
a) cesium iodide b) thermocouple
c) piezoelectric crystal d) none of these.
iii) Phonocardiography technique is used to
a) record the electrical activity of heart
b) record the respiratory function
c) record the heart sound
d) none of these.
iv) Fluorescence occurs when
a) emitted light has longer wavelength than absorbed light
b) emitted light has equal wavelength of absorbed light
c) emitted light has shorter wavelength than absorbed light
d) emitted light has complete absorption.
v) Indian Standard for safety codes for electromedical equipment has been issued by
a) IEC b) ISO
c) BIS d) USP.
vi) In case of atrial flutter
a) interval between T and P waves completely disappears
b) interval between P and Q waves completely disappears
c) interval between S and T waves completely disappears
d) none of these.
vii) In ECG vector cardiography the first vector represents
a) atrial depolarization
b) spike potential
c) ventricular depolarization
d) none of these.
viii) a, ß, ?, d waves are recorded in
a) electro-occulogram b) electro-encephalogram
c) electro-cardiagram d) all of these.
ix) The proportion of light transmitted I / I0 ( ) is called the
a) transmittance b) absorbance
c) optical density d) none of these.
x) An example of a biological transducer is
a) blood b) cochlea
c) brain d) tongue.
GROUP – B : ( Short Answer Type Questions )
Answer any three of the following questions. 3 × 5 = 15
2. What are the main electrolytes present in biological fluid ? Briefly explain a procedure for the determination of conduction of biological fluid. 1 + 4
3. Briefly discuss the bipolar limb-lead system for ECG measurement. What are the parameters used for the diagnosis of ECG signal ? 3 + 2
4. What are the main properties of ultrasound ? What are the specifications of medical ( diagnostics ) ultrasound ? 4 + 1
5. Explain the medical significance of a and ? waves in EEG. 5
6. Write short notes on “application of biometric in modern technology”. 5
GROUP – C : ( Long Answer Type Questions )
Answer any three of the following questions. 3 × 15 = 45
7. Define radioactivity with the help of law of radioactive decay. How can you detect and measure the intensity of radioactivity ? What is electromagnetic radiation ? What is the photoelectric process and significance in radiology ? 5 + 5 + 1 + 4
8. Describe the technique for determination of EMF of a single biological cell. What do you mean by impedance of biological system ? Explain any two methods used to measure the impedance of body. 4 + 3 + 8
9. What do you mean by macroshock and microshock in the physiological measurement ? What is “Let go current” ? Briefly discuss the magnetic properties of biological substances. Give brief outlines of merits and demerits of magnetic field and radio waves in the biological system. 4 + 1 + 4 + 6
10. What is the electrical activity of human brain ? Briefly discuss about the recording electrodes of EEG signals. Do you think that the electroencephalogram is subject to frequency discrimination ? Explain. What is electroretinography ? 2 + 6 + 4 + 3
11. How can you measure the concentration ( solute ) of a solution by using Beer-Lambert law ? Give a schematic diagram of the instrumental procedure. What are the main electrolytes present in biological fluid ? Briefly discuss a procedure for measuring the electrical conductance of biological fluid. 3 + 5 + 1 + 6
12. What do you understand by vector cardiography ? With the help of vector cardiography explain the flow of electrical impulse in the heart. What are the different types of electrocardiographic leads ? With the help of a suitable diagram, explain the position ofthe leads. 3 + 5 + 3 + 4