W1-2-60-1-6
JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY
UNIVERSITY EXAMINATIONS 2018/2019
YEAR I SEMESTER II EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN COMMUNITY HEALTH AND DEVELOPMENT/HEALTH INFORMATION AND RECORDS MANAGEMENT
ICH 2102/MLS 2102: MEDICAL PHYSICS/PHYSICS FOR MEDICAL SCIENCES
DATE: AUGUST 2019 TIME: 2 HOURS
INSTRUCTIONS: ANSWER ALL QUESTIONS IN SECTION A AND ANY ONE QUESTION IN SECTION B
SECTION A (48 MARKS) COMPULSORY
1. a. Explain the following terms:
i. Energy storage
ii. Sensitive heat and intent heat. (2 marks)
iii. Specific heat and heat capacity. (2 marks)
b. Explain the three modes of heat transfer. (6 marks)
c. State Ohm’s law and express the equation. (6 marks)
d. Explain how heat is transferred in the human body. (8 marks)
e. State the laws of thermodynamics and explain them. (6 marks)
f. Briefly describe the human visual system. (6 marks)
g. Explain the laws of reflection. (3 marks)
h. Describe the working principles of an endoscope. (7 marks)
2. a. Explain how an ECG machine operates. (10 marks)
b. Describe the principle behind magnetic Resonance imaging. (12 marks)
3. a. Explain the various vision and eye defects. (12 marks)
b. Explain how lenses are used to correct impaired eyes. (10 marks)
4. Discuss the relationship between physics concepts and medicine. (22 marks)
