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MCQs

Total Questions : 62 | Page 3 of 7 pages
Question 21. Example of electromagnetic wave is
  1.    Gamma rays
  2.    X-rays
  3.    Beta rays
  4.    Alpha rays
 Discuss Question
Answer: Option B. -> X-rays
Answer: (b).X-rays
Question 22. For obtaining information about fine fibers, waves used are
  1.    electromagnetic
  2.    electroscopic
  3.    electromotive
  4.    electrified
 Discuss Question
Answer: Option A. -> electromagnetic
Answer: (a).electromagnetic
Question 23. Diffraction through moving threadline can be done using
  1.    X-ray
  2.    dynamic X-ray
  3.    dynamic gamma rays
  4.    dynamic alpha rays
 Discuss Question
Answer: Option B. -> dynamic X-ray
Answer: (b).dynamic X-ray
Question 24. Crystals in fibers are usually oriented
  1.    parallel to fibre axis
  2.    perpendicular to fibre axis
  3.    horizontal to fibre axis
  4.    inclined to fibre axis
 Discuss Question
Answer: Option A. -> parallel to fibre axis
Answer: (a).parallel to fibre axis
Question 25. Four spots formed from diffraction in fibre photograph lies
  1.    together
  2.    in 4 quadrants
  3.    in 2 quadrants
  4.    at random distances
 Discuss Question
Answer: Option B. -> in 4 quadrants
Answer: (b).in 4 quadrants
Question 26. Enhanced quantitative information on diffraction pattern is given by
  1.    array of detectors
  2.    light spectrum
  3.    light scattering
  4.    light array
 Discuss Question
Answer: Option A. -> array of detectors
Answer: (a).array of detectors
Question 27. A crystal features
  1.    layers of atoms
  2.    two-dimensional plan
  3.    atoms stacked on each other
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 28. Broadening of spots into arcs shows a decrease in degree of
  1.    scattering
  2.    orientation
  3.    diffusion
  4.    diffraction
 Discuss Question
Answer: Option B. -> orientation
Answer: (b).orientation
Question 29. Wide angle diffraction gives information about the
  1.    finest inter-atomic spacing
  2.    longer spacing
  3.    moderate spacing
  4.    variable spacing
 Discuss Question
Answer: Option A. -> finest inter-atomic spacing
Answer: (a).finest inter-atomic spacing
Question 30. Restriction of angles reduces diffraction pattern from circles to
  1.    4 spots
  2.    3 spots
  3.    2 spots
  4.    1 spot
 Discuss Question
Answer: Option A. -> 4 spots
Answer: (a).4 spots

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