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(Single Best Answer) Question 31: Which of the following is the most radiosensitive tumour ?

A) Ewing's Tumor
B) Hodgkin's Disease
C) Carcinoma Cervix
D) Malignant fibrous histiocytoma
Answer (Select an option above to get the answer):

(Single Best Answer) Question 32: Radiation therapy to hypoxic tissues may be potentiated by the treatment with ?

A) Mycostatin
B) Metronidazole
C) Methotrexate
D) Melphalan
Answer (Select an option above to get the answer):

(Single Best Answer) Question 33: Stereotactic Radio-surgery is a form of ?

A) Radiotherapy
B) Radioiodine therapy
C) Robotic Surgery
D) Cryo Surgery
Answer (Select an option above to get the answer):

(Single Best Answer) Question 34: For the treatment of deep seated tumors, the following rays are used ?

A) X rays and Gamma rays
B) Alpha rays and Beta rays
C) Electrons and positrons
D) High power laser beams
Answer (Select an option above to get the answer):

(Single Best Answer) Question 35: Which of the following is the most penetrating beam ?

A) Electron Beam
B) Proton Beam
C) 8 MV photons
D) 18 MV photons
Answer (Select an option above to get the answer):

(Single Best Answer) Question 36: Which of the following is the most radiosensitive tumor ?

A) Craniopharyngioma
B) Medulloblastoma
C) Astrocytoma
D) Teratoma
Answer (Select an option above to get the answer):

(Single Best Answer) Question 37: Ionizing radiation acts on tissue depending upon ?

A) Linear acceleration energy
B) Thermal injury
C) Excitation of electron from orbit
D) Formation of pyrimidine dimers
Answer (Select an option above to get the answer):

(Single Best Answer) Question 38: Most radiosensitive among the following is ?

A) Carcinoma of Ovary
B) Carcinoma of Kidney
C) Carcinoma of Pancreas
D) Carcinoma of Cervix
Answer (Select an option above to get the answer):

(Single Best Answer) Question 39: Half - life of Technetium 99 is ?

A) 2 hours
B) 6 hours
C) 12 hours
D) 24 hours
Answer (Select an option above to get the answer):

(Single Best Answer) Question 40: Maximum penetration is seen with ?

A) Alpha particles
B) Beta particles
C) Gamma particles
D) Electron Beam
Answer (Select an option above to get the answer):