Class 12 Physics · Chapter 8 · Test 1
Medical Radiation and Ultrasound
45 MCQs
49 questions · 40 min · 49 marks
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Sample questions
The first 5 of 49. Try each one, then tap to see the answer.
Question 1
Medical physics is the branch of physics that:
- AApplies physical principles and techniques to medicine for diagnosis and treatment
- BStudies only the motion of planets
- CDeals only with chemical reactions
- DStudies only heat engines
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Answer: A
Medical physics applies physics to medicine especially in the diagnosis and treatment of diseases.
Question 2
Radiation is the transfer of energy through space or matter in the form of:
- AHeat only
- BWaves or particles
- CSound only
- DChemicals
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Answer: B
Radiation is the transfer of energy through space or matter as waves or particles.
Question 3
Radiation used in medical physics is broadly classified into:
- AHot and cold radiation
- BVisible and invisible radiation
- CNon-ionizing and ionizing radiation
- DFast and slow radiation
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Answer: C
Radiation is broadly classified into non-ionizing and ionizing radiation.
Question 4
Which of the following is a non-ionizing radiation used in medicine?
- AX-rays
- BGamma rays
- CPositrons
- DUltrasound waves
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Answer: D
Ultrasound waves and radiowaves are examples of non-ionizing radiation.
Question 5
X-rays and gamma rays interact with matter mainly through the photoelectric effect and:
- ACompton scattering
- BRefraction
- CDiffraction
- DInterference
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Answer: A
Interaction of X-rays and gamma rays with matter occurs through photoelectric effect and Compton scattering.
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