Elementary Medical Physics

The mass number is the total number of ------- in the atom.

• protons

• neutrons

• both protons and neutrons

• none of the above

-------- is an ionizing radiation

• infrared wave

• ultrasound wave

• X-ray

• radiowave

A condition that makes your heart beat more than 100 times per minute

• Bradycardia

• Tachycardia

• arrythmia

• bradypnea

Find the odd one out

• Body temperature

• Heart rate

• Blood sugar

• Respiratory rate

Unstable nuclei transform to stable ones by emitting

• alpha particle

• beta particles

• gamma rays

• All of the above

A records of the electrical activity of the heart is termed as

• ECG

• EEG

• EMG

• EOG

Which medical imaging technique uses nonionizing radiation?

• X-ray imaging

• CT Scan

• Ultrasound Imaging

What is the usual frequency of waves used for ultrasound scanning?

• < 20Hz

• < 20kHz

• < 10kHz

• >20kHz

Which of the following statements is true about X-rays?

• The anode is made of Tungsten
• The Cathode is made of Tungsten
• Both are made of Tungsten
• Neither are made of Tungsten

Unit of radiation dose

• ohm

• sievert

• seimens

• joule