X Ray Spectrometers(Analytical Instrumentation ) Questions and Answers
Question 1. In X-ray spectrometers, the specimen or the sample is placed after which of the following components?
X-ray tube
Monochromator
Collimator
Detector
Explanation:-
Answer: Option A. -> X-ray tube Answer: (a).X-ray tube
Question 2. Using which of the following components is the generated x-rays focussed upon the specimen?
X-ray tube
Monochromator
Collimator
Detector
Explanation:-
Answer: Option C. -> Collimator Answer: (c).Collimator
Question 3. The cathode in the Coolidge tube is kept in an inclined manner.
True
False
May be True or False
Can't say
Explanation:-
Answer: Option B. -> False Answer: (b).False
Question 4. The cathode in the Coolidge tube is made of which of the following elements?
Quartz
Iron
Tungsten
Barium
Explanation:-
Answer: Option C. -> Tungsten Answer: (c).Tungsten
Question 5. Which of the following components are used to generate X-rays?
Meyer tube
West tube
Anger tube
Coolidge tube
Explanation:-
Answer: Option D. -> Coolidge tube Answer: (d).Coolidge tube
Question 6. Which of the following can be done to avoid loss of intensities of X-rays due to the absorption of long wavelength X-rays?
Apparatus must be contained in a chamber
Air in the chamber must be replaced by helium
Inert gas atmosphere must be provided
Proper slits must be used
Explanation:-
Answer: Option B. -> Air in the chamber must be replaced by helium Answer: (b).Air in the chamber must be replaced by helium
Question 7. The crystal used as X-ray grating has _______ dimensional lattice arrays.
One
Two
Three
Four
Explanation:-
Answer: Option C. -> Three Answer: (c).Three
Question 8. In curved crystal arrangement, angular velocity of the crystal is twice that of the detector.
True
False
May be True or False
Can't say
Explanation:-
Answer: Option B. -> False Answer: (b).False
Question 9. Which of the following is the disadvantage of silicon semiconductor detector?
Low stable
Can be operated only at low temperatures
Have low count-rate
Low resolution
Explanation:-
Answer: Option B. -> Can be operated only at low temperatures Answer: (b).Can be operated only at low temperatures
Question 10. In total reflection X-ray fluorescence spectrometer, the specimen is excited by the primary X-ray beam at a grazing angle _______ the critical angle.
Greater than
Less than
Equal to
Which is a complement of
Explanation:-
Answer: Option B. -> Less than Answer: (b).Less than