Nuclear Radiations stb MCQs - Physics 12th - Chapter 20 - Sindh Textbook Board

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NUCLEAR RADIATIONS

        

1. When alpha particles interact with matter, they:

a) Penetrate deeply into the material

b) Lose energy quickly and have a short range

c) Are unaffected by the material

d) Scatter in random directions


2. Protons are particles that carry a positive charge. In terms of their interaction with matter, protons:

a) Lose energy quickly and have a short range

b) Penetrate deeply into the material

c) Are unaffected by the material

d) Scatter in random directions


3. Beta particles are:

a) Positively charged particles

b) Neutrally charged particles

c) Negatively charged particles

d) Neutrons


4. Gamma rays are:

a) Particles with a positive charge

b) Particles with a negative charge

c) Particles with no charge

d) High-energy electromagnetic waves


5. Neutrons have:

a) A positive charge

b) A negative charge

c) No charge

d) Both positive and negative charges


6. The Wilson cloud chamber is used to:

a) Detect alpha particles

b) Detect beta particles

c) Detect gamma rays

d) Visualize the paths of charged particles


7. A Geiger counter is a device used to:

a) Detect alpha particles

b) Detect beta particles

c) Detect gamma rays

d) Measure radiation exposure


8. Solid-state detectors are commonly used to detect:

a) Alpha particles

b) Beta particles

c) Gamma rays

d) Neutrons


9. Radiation exposure refers to:

a) The amount of radiation emitted by a radioactive source

b) The amount of radiation absorbed by a material

c) The amount of radiation a person receives

d) The amount of radiation reflected by a surface


10. Radiation damage to living tissue can result from:

a) Ionization of atoms and molecules

b) Thermal effects of radiation

c) Chemical changes induced by radiation

d) All of the above


11. The effects of radiation damage on living cells include:

a) DNA mutations

b) Cell death

c) Cancer development

d) All of the above


12. Biological and medical uses of radiation include:

a) Radiation therapy for cancer treatment

b) X-ray imaging for medical diagnostics

c) Radioisotope tracing in biological research

d) All of the above


13. Radiation therapy is a treatment for cancer that involves:

a) Using radioactive materials to destroy cancer cells

b) Administering high doses of gamma rays to the tumor

c) Surgical removal of the tumor

d) Chemotherapy with radiation-sensitive drugs


14. Radiography is a technique that uses radiation to:

a) Image the interior of objects or materials

b) Treat cancerous tumors

c) Measure radiation exposure

d) Sterilize medical equipment


15. The process of using radiation to induce chemical reactions is called:

a) Radiosynthesis

b) Radiolysis

c) Radioimmunoassay

d) Radiography


16. Cosmic rays are:

a) High-energy particles from outer space

b) Radioactive emissions from the Earth's core

c) Artificially generated radiation

d) Ionizing radiation produced by nuclear reactors


17. Polymerization can be induced by:

a) Alpha particles

b) Beta particles

c) Gamma rays

d) Neutrons


18. Sterilization and food preservation can be achieved by using:

a) Alpha particles

b) Beta particles

c) Gamma rays

d) Neutrons


19. Gauging and control using radiation is commonly employed in industries such as:

a) Oil and gas

b) Nuclear power

c) Food processing

d) All of the above


20. Radiography is used in archaeology to:

a) Detect underground water sources

b) Image the structure of ancient artifacts

c) Date fossils and ancient remains

d) Analyze chemical composition of rocks


21. Activation analysis is a technique that utilizes radiation to:

a) Determine the age of archaeological artifacts

b) Measure the amount of radiation exposure

c) Detect trace elements in materials

d) Produce energy in nuclear reactors


22. The process of using radiation for sterilization purposes is known as:

a) Radiotherapy

b) Radiosynthesis

c) Radiolysis

d) Irradiation


23. Which of the following is a medical application of radiation?

a) MRI scans

b) Laser surgery

c) Blood transfusion

d) Ultrasound imaging


24. Radiation therapy is primarily used to:

a) Diagnose diseases

b) Treat infections

c) Treat cancer

d) Promote wound healing


25. Radioisotopes are often used in medical diagnostics to:

a) Destroy cancer cells

b) Create images of internal organs

c) Monitor heart rate

d) Treat bacterial infections


26. What is the most common type of radiation used in medical imaging?

a) Alpha particles

b) Beta particles

c) Gamma rays

d) Neutrons


27. Which of the following radiation techniques is commonly used in cancer treatment?

a) Wilson cloud chamber

b) Geiger counter

c) Solid-state detectors

d) Radiation therapy


28. The process of using radiation to treat cancer involves:

a) Surgical removal of the tumor

b) Administering chemotherapy drugs

c) Targeting and destroying cancer cells with radiation

d) Prescribing pain medication for cancer patients


29. Brachytherapy is a form of radiation therapy where radioactive sources are placed:

a) Inside or near the tumor

b) Outside the patient's body

c) In the bloodstream

d) In the lymph nodes


30. Which of the following is a side effect of radiation therapy?

a) Increased energy levels

b) Enhanced immune system

c) Skin irritation and fatigue

d) Improved appetite


31. In radiation therapy, a linear accelerator is used to:

a) Produce gamma rays

b) Measure radiation dosage

c) Deliver targeted radiation to the tumor

d) Detect radioactive materials


32. Radiation techniques are also used in other fields, such as:

i) Chemical reactions induced by radiations

ii) Radio processes in space, the cosmic rays

iii) Uses of radiations (polymerization, sterilization, food preservation, gauging and control, radiography, radiation methods in archaeology, activation analysis)

a) i) and ii) only

b) ii) and iii) only

c) i) and iii) only

d) i), ii), and iii)


33. The study and analysis of chemical reactions induced by radiation is known as:

a) Radiobiology

b) Radiation chemistry

c) Radiopharmaceuticals

d) Radiosynthesis


34. Cosmic rays are:

a) High-energy particles from outer space

b) Radioactive emissions from the Earth's core

c) Artificially generated radiation

d) Ionizing radiation produced by nuclear reactors


35. The technique of using radiation to induce polymerization is commonly employed in the production of:

a) Plastics

b) Metals

c) Glass

d) Ceramics


36. In the context of radiation, sterilization is primarily used to:

a) Remove bacteria from food products

b) Clean medical equipment

c) Preserve perishable items

d) Enhance the taste of beverages


37. The process of using radiation to control and measure the thickness of materials is called:

a) Radiography

b) Radiosynthesis

c) Radiation gauging

d) Radioactive tracing


38. Radiography is commonly used in which of the following fields?

a) Medicine

b) Geology

c) Engineering

d) All of the above


39. Activation analysis is a technique that utilizes radiation to:

a) Determine the age of archaeological artifacts

b) Measure the amount of radiation exposure

c) Detect trace elements in materials

d) Produce energy in nuclear reactors


40. The process of using radiation to determine the composition of materials by analyzing the radiation emitted is called:

a) Radiosynthesis

b) Radiolysis

c) Radiography

d) Activation analysis


ANSWER KEY:

1. b) Lose energy quickly and have a short range

2. a) Lose energy quickly and have a short range

3. c) Negatively charged particles

4. d) High-energy electromagnetic waves

5. c) No charge

6. d) Visualize the paths of charged particles

7. c) Detect gamma rays

8. d) Neutrons

9. c) The amount of radiation a person receives

10. d) All of the above

11. d) All of the above

12. d) All of the above

13. a) Using radioactive materials to destroy cancer cells

14. a) Image the interior of objects or materials

15. b) Radiolysis

16. a) High-energy particles from outer space

17. c) Gamma rays

18. c) Gamma rays

19. d) All of the above

20. b) Image the structure of ancient artifacts

21. c) Detect trace elements in materials

22. d) Irradiation

23. b) X-ray imaging for medical diagnostics

24. c) Treat cancer

25. b) Create images of internal organs

26. c) Gamma rays

27. d) Radiation therapy

28. c) Targeting and destroying cancer cells with radiation

29. a) Inside or near the tumor

30. c) Skin irritation and fatigue

31. c) Deliver targeted radiation to the tumor

32. d) i), ii), and iii)

33. b) Radiation chemistry

34. a) High-energy particles from outer space

35. a) Plastics

36. b) Clean medical equipment

37. c) Radiation gauging

38. d) All of the above

39. c) Detect trace elements in materials

40. d) Activation analysis

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