Sail E0 Webinar

MCQs

Total Questions : 78 | Page 5 of 8 pages
Question 41. The applications of X-ray absorption meters are limited when compared with X-ray emission procedures.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 42. In absorption meter, which of the following is placed between the cell and the X-ray tube?
  1.    Collimator
  2.    Filter
  3.    Chopper
  4.    Attenuator
 Discuss Question
Answer: Option C. -> Chopper
Answer: (c).Chopper
Question 43. In absorption meter, which of the following is placed between the chopper and the reference cell?
  1.    Collimator
  2.    Filter
  3.    Photomultiplier tube
  4.    Attenuator
 Discuss Question
Answer: Option D. -> Attenuator
Answer: (d).Attenuator
Question 44. In absorption meter, the two halves of the X-ray beam are allowed to fall on which of the following components?
  1.    Collimator
  2.    Filter
  3.    Photomultiplier tube
  4.    Attenuator
 Discuss Question
Answer: Option C. -> Photomultiplier tube
Answer: (c).Photomultiplier tube
Question 45. The photomultiplier tube used is absorption meter is coated with which of the following materials?
  1.    Sodium
  2.    Potassium
  3.    Phosphorous
  4.    Chlorine
 Discuss Question
Answer: Option C. -> Phosphorous
Answer: (c).Phosphorous
Question 46. In absorption meter, which of the following is adjusted until the absorption of two X-ray beams are brought into balance?
  1.    Collimator
  2.    Filter
  3.    Photomultiplier tube
  4.    Attenuator
 Discuss Question
Answer: Option D. -> Attenuator
Answer: (d).Attenuator
Question 47. Absorption meters cannot be used to detect broken bones.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 48. In absorption meter, the change in thickness of aluminium required for different samples is a function of the difference in which of the following parameters?
  1.    Amount
  2.    Concentration
  3.    Colour
  4.    Composition
 Discuss Question
Answer: Option D. -> Composition
Answer: (d).Composition
Question 49. If the absorption of electromagnetic radiation by matter results in the emission of radiation of the same or longer wavelengths for a short time, the phenomenon is termed as which of the following?
  1.    Luminescence
  2.    Fluorescence
  3.    Phosphorescence
  4.    Spontaneous emission
 Discuss Question
Answer: Option B. -> Fluorescence
Answer: (b).Fluorescence
Question 50. If the absorption of electromagnetic radiation by matter results in the emission of radiation of the same or longer wavelengths for a long or a short time, the phenomenon is termed as which of the following?
  1.    Luminescence
  2.    Fluorescence
  3.    Phosphorescence
  4.    Spontaneous emission
 Discuss Question
Answer: Option A. -> Luminescence
Answer: (a).Luminescence

Latest Videos

Latest Test Papers