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Question for NEET PG Radiotherapy - Quiz / Questions / MCQ in English

Last Update on : October 11, 2026

Duration: 60 · Questions: 50 · Max Marks: 50

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To boost your performance in NEET PG Radiotherapy exam, practice each question regularly and with focus. Every question tests your subject understanding, so solve them one at a time. Taking a quiz improves your speed and accuracy. Practicing topic-wise MCQs. Students benefit greatly from reviewing questions with answer keys, which help clarify concepts and strengthen Questions knowledge for success in NEET PG Radiotherapy exams.

Latest NEET PG Radiotherapy Exam Question (Objective Questions), MCQ in English

Subjects : Radiotherapy

Question Bank NEET PG Radiotherapy - English

Radiotherapy

Q 1 :
What is the most commonly used radiation type in external beam radiotherapy?
  1. A.Protons
  2. B.Electrons
  3. C.Photons
  4. D.Neutrons
Q 2 :
Which type of radiation is primarily used for superficial tumors?
  1. A.Photons
  2. B.Electrons
  3. C.Protons
  4. D.Heavy ions
Q 3 :
What is a characteristic of proton therapy?
  1. A.Low-energy beams
  2. B.Uniform dose distribution
  3. C.High scatter radiation
  4. D.Bragg peak dose deposition
Q 4 :
Which radiation type is used in Gamma Knife radiotherapy?
  1. A.X-rays
  2. B.Gamma rays
  3. C.Electrons
  4. D.Neutrons
Q 5 :
What is a benefit of heavy ion therapy?
  1. A.High biological effectiveness
  2. B.Low biological effectiveness
  3. C.High scatter radiation
  4. D.No shielding required
Q 6 :
Which radiation type is used for treating deep-seated tumors?
  1. A.Alpha particles
  2. B.Electrons
  3. C.Neutrons
  4. D.Photons
Q 7 :
What is a feature of neutron therapy?
  1. A.Low linear energy transfer
  2. B.High linear energy transfer
  3. C.Skin-sparing effect
  4. D.Uniform dose distribution
Q 8 :
Which radiation type is primarily used in brachytherapy?
  1. A.Gamma rays
  2. B.X-rays
  3. C.Electrons
  4. D.Protons
Q 9 :
What is a limitation of electron beam therapy?
  1. A.Limited penetration depth
  2. B.High penetration depth
  3. C.High scatter radiation
  4. D.No shielding required
Q 10 :
What is a characteristic of proton therapy compared to photon therapy?
  1. A.Reduced exit dose
  2. B.Increased exit dose
  3. C.Uniform dose distribution
  4. D.High scatter radiation
Q 11 :
What is the primary component of a linear accelerator that generates electrons?
  1. A.Flattening filter
  2. B.Bending magnet
  3. C.Electron gun
  4. D.Collimator
Q 12 :
What is the role of the accelerating waveguide in a linear accelerator?
  1. A.Accelerates electrons
  2. B.Shapes the beam
  3. C.Filters the beam
  4. D.Produces gamma rays
Q 13 :
What is the purpose of the bending magnet in a linear accelerator?
  1. A.Directs electrons to the target
  2. B.Generates electrons
  3. C.Filters the beam
  4. D.Collimate the beam
Q 14 :
What material is commonly used as the target in a linear accelerator for X-ray production?
  1. A.Tungsten
  2. B.Cobalt
  3. C.Cesium
  4. D.Iodine
Q 15 :
What is the role of the flattening filter in a linear accelerator?
  1. A.Uniform beam intensity
  2. B.Generate electrons
  3. C.Accelerate electrons
  4. D.Collimates the beam
Q 16 :
What is a feature of the scattering foil in electron therapy?
  1. A.Spreads electron beam
  2. B.Generates X-rays
  3. C.Accelerates electrons
  4. D.Filters the beam
Q 17 :
What is the primary source of X-rays in a linear accelerator?
  1. A.Beta emission
  2. B.Characteristic radiation
  3. C.Gamma emission
  4. D.Bremsstrahlung radiation
Q 18 :
What is a component of a linear accelerator that shapes the radiation beam?
  1. A.Flattening filter
  2. B.Electron gun
  3. C.Accelerating waveguide
  4. D.Multileaf collimator
Q 19 :
What is the energy range of X-rays produced by a linear accelerator for radiotherapy?
  1. A.20-30 MV
  2. B.1-5 kV
  3. C.6-18 MV
  4. D.50-100 kV
Q 20 :
What is a safety feature of a linear accelerator?
  1. A.Manual operation
  2. B.No shielding required
  3. C.Interlock system
  4. D.Low-energy beams
Q 21 :
Which isotope is commonly used in Gamma Knife radiotherapy?
  1. A.Iodine-125
  2. B.Iridium-192
  3. C.Cobalt-60
  4. D.Strontium-90
Q 22 :
What is a common use of Iridium-192 in radiotherapy?
  1. A.Diagnostic imaging
  2. B.Thyroid cancer treatment
  3. C.Bone metastases palliation
  4. D.High-dose-rate brachytherapy
Q 23 :
Which isotope is used for prostate seed implants?
  1. A.Strontium-90
  2. B.Cobalt-60
  3. C.Cesium-137
  4. D.Iodine-125
Q 24 :
What is a feature of Cesium-137 in radiotherapy?
  1. A.Diagnostic imaging
  2. B.Used in external beam therapy
  3. C.Used in intracavitary brachytherapy
  4. D.No radiation emission
Q 25 :
Which isotope is used for bone pain palliation?
  1. A.Palladium-103
  2. B.Iridium-192
  3. C.Cobalt-60
  4. D.Strontium-90
Q 26 :
What is a common use of Palladium-103 in radiotherapy?
  1. A.Diagnostic imaging
  2. B.Thyroid cancer treatment
  3. C.Bone metastases palliation
  4. D.Prostate brachytherapy
Q 27 :
What is a feature of Cobalt-60 in radiotherapy?
  1. A.Beta emitter
  2. B.Gamma emitter
  3. C.Alpha emitter
  4. D.No radiation emission
Q 28 :
What is a complication of Iodine-125 therapy?
  1. A.Pulmonary edema
  2. B.Systemic toxicity
  3. C.Renal failure
  4. D.Local tissue damage
Q 29 :
Which isotope is used for eye plaque brachytherapy?
  1. A.Cesium-137
  2. B.Iridium-192
  3. C.Cobalt-60
  4. D.Strontium-90
Q 30 :
What is a benefit of Iridium-192 in brachytherapy?
  1. A.Low-energy beta emission
  2. B.High-energy gamma emission
  3. C.Diagnostic imaging
  4. D.No radiation emission
Q 31 :
What is the primary interaction of photons in the diagnostic energy range?
  1. A.Pair production
  2. B.Compton scattering
  3. C.Photoelectric effect
  4. D.Coherent scattering
Q 32 :
Which photon interaction dominates in the megavoltage energy range used in radiotherapy?
  1. A.Pair production
  2. B.Photoelectric effect
  3. C.Compton scattering
  4. D.Coherent scattering
Q 33 :
What is a feature of the photoelectric effect?
  1. A.No energy transfer
  2. B.Partial scattering of photon
  3. C.Production of positron-electron pair
  4. D.Complete absorption of photon
Q 34 :
What is a feature of Compton scattering?
  1. A.No energy transfer
  2. B.Absorbs photon completely
  3. C.Produces positron-electron pair
  4. D.Scatters photon with energy loss
Q 35 :
At what energy does pair production become significant?
  1. A.Below 100 keV
  2. B.Below 02 MeV
  3. C.Above 02 MeV
  4. D.Above 10 MeV
Q 36 :
What is the relevance of the photoelectric effect in radiotherapy?
  1. A.Reduces dose in bone
  2. B.Enhances dose in bone
  3. C.No effect on dose
  4. D.Increases scatter
Q 37 :
What is a product of pair production?
  1. A.Scattered photon
  2. B.Positron-electron pair
  3. C.Photoelectron
  4. D.No products
Q 38 :
What is a feature of Compton scattering in radiotherapy?
  1. A.No energy transfer
  2. B.Complete photon absorption
  3. C.Primary dose deposition mechanism
  4. D.Produces positron-electron pair
Q 39 :
What is the dependence of the photoelectric effect on atomic number?
  1. A.Proportional to Z
  2. B.Proportional to Z3
  3. C.Inversely proportional to Z
  4. D.No dependence
Q 40 :
What is a clinical implication of Compton scattering?
  1. A.Enhanced dose in bone
  2. B.Uniform dose in soft tissue
  3. C.No dose deposition
  4. D.Increased skin dose
Q 41 :
What is the primary mechanism of electron energy loss in tissue?
  1. A.Photoelectric effect
  2. B.Radiative losses
  3. C.Collisional losses
  4. D.Pair production
Q 42 :
What is a feature of radiative losses in electron therapy?
  1. A.No energy loss
  2. B.Produces photoelectrons
  3. C.Produces bremsstrahlung radiation
  4. D.Produces positron-electron pairs
Q 43 :
What is the range of electrons in tissue dependent on?
  1. A.Photon energy
  2. B.Tissue density
  3. C.Atomic number
  4. D.Electron energy
Q 44 :
What is a clinical application of electron therapy?
  1. A.Deep-seated tumor treatment
  2. B.Superficial tumor treatment
  3. C.Bone metastases palliation
  4. D.Diagnostic imaging
Q 45 :
What is a feature of electron dose distribution?
  1. A.Rapid dose fall-off
  2. B.Uniform dose distribution
  3. C.High exit dose
  4. D.No dose deposition
Q 46 :
What is a mechanism of electron interaction with matter?
  1. A.Compton scattering
  2. B.Pair production
  3. C.Photoelectric effect
  4. D.Ionization and excitation
Q 47 :
What is a limitation of electron therapy?
  1. A.Limited penetration depth
  2. B.High penetration depth
  3. C.High scatter radiation
  4. D.No shielding required
Q 48 :
What is a feature of radiative losses in high-energy electron beams?
  1. A.Increases with atomic number
  2. B.Decreases with atomic number
  3. C.No dependence on atomic number
  4. D.No energy loss
Q 49 :
What is a benefit of electron therapy?
  1. A.Uniform dose distribution
  2. B.High exit dose
  3. C.Spares deeper tissues
  4. D.High scatter radiation
Q 50 :
What is a clinical implication of electron collisional losses?
  1. A.Increased scatter
  2. B.Diffuse dose deposition
  3. C.No dose deposition
  4. D.Localized dose deposition

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