(MHO 1101)
NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
FACULTY OF MEDICINE
MEDICAL SCHOOL
BACHELOR OF MEDICINE AND BACHELOR OF SURGERY DEGREE
PART I EXAMINATIONS
(MHO 1101) : PHYSICS & PHYSIOLOGICAL MEASUREMENTS
DATE : DECEMBER 2005
TIME : 3 HOURS
Instructions to Candidates
Answer all questions
SECTION A
1. Describe the buffering capacity of the bicarbonate/carbonic acid
system as it applies to metabolic alkalosis/acidosis and respiratory
akalosis/acidosis. (20)
2. a) List four types of radiation detectors. (2)
b) Compare and contrast the properties of ∝, β and γ rays. (10)
c) What are the biological effects of radiation on DNA? (3)
3. Show that kinetic energy (Ek) = ½ mv2 and that potential energy (Ep) =
mgh, where m is the mass, g is the acceleration due to gravity, v is the
velocity and h is the height. (4)
4. a) State Snell’s Law (1)
b) Describe the principle by which a surgeon is able to view the operation
site using a fibre optic cable. (5)
Page 1 of 2
NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
FACULTY OF MEDICINE
MEDICAL SCHOOL
BACHELOR OF MEDICINE AND BACHELOR OF SURGERY DEGREE
PART I EXAMINATIONS
(MHO 1101) : PHYSICS & PHYSIOLOGICAL MEASUREMENTS
DATE : DECEMBER 2005
TIME : 3 HOURS
Instructions to Candidates
Answer all questions
SECTION A
1. Describe the buffering capacity of the bicarbonate/carbonic acid
system as it applies to metabolic alkalosis/acidosis and respiratory
akalosis/acidosis. (20)
2. a) List four types of radiation detectors. (2)
b) Compare and contrast the properties of ∝, β and γ rays. (10)
c) What are the biological effects of radiation on DNA? (3)
3. Show that kinetic energy (Ek) = ½ mv2 and that potential energy (Ep) =
mgh, where m is the mass, g is the acceleration due to gravity, v is the
velocity and h is the height. (4)
4. a) State Snell’s Law (1)
b) Describe the principle by which a surgeon is able to view the operation
site using a fibre optic cable. (5)
Page 1 of 2
