Q.1
Which of the following is the main factor because of which DTA cells are designed?
  • a) Minimum sensitivity
  • b) Maximum solubility
  • c) Minimum solubility
  • d) Maximum sensitivity
Q.2
A rapid TGA method is used for which of the following process?
  • a) Decomposition of enzymes exothermally
  • b) Decomposition of crystals endothermally
  • c) Decomposition of reactions isothermally
  • d) Decomposition of polymers exothermally
Q.3
Which of the following statements is true for Kα transition?
  • a) It is four let
  • b) It is triplet
  • c) It is doublet
  • d) It is singlet
Q.4
Which of the following statement is true for the optical grating?
  • a) It gives 2 dimensional analogue of the 3 dimensional process
  • b) It gives 1 dimensional analogue of the 2 dimensional process
  • c) It gives 1 dimensional analogue of the 3 directional process
  • d) It gives 3 dimensional analogue of the 1 dimensional process
Q.5
Which of the following equation is used for the constructive interference in optical grating?
  • a) a cotα=nλ
  • b) a secα=nλ
  • c) a tanα=nλ
  • d) a sinα=nλ
Q.6
Which of the following unit cell has all the angles atbut the sides are of unequal length?
  • a) Triclinic unit cell
  • b) Monoclinic unit cell
  • c) Hex clinic unit cell
  • d) Orthorhombic unit cell
Q.7
Which of the following rays are used in the powder method of crystals?
  • a) β-rays
  • b) Monochromatic X-rays
  • c) Gamma rays
  • d) α-rays
Q.8
Which of the following phenomenon takes place when the arrangement of the crystal is not random?
  • a) Preferred orientation exits
  • b) Preferred orientation enters
  • c) The temperature increases
  • d) The temperature decreases
Q.9
Cu Kα radiation of wavelength 1.A˚, is generated by which of the following transition?
  • a) 2s→4s
  • b) 2p→1s
  • c) 1s→2p
  • d) 3s→1s
Q.10
Unit cell parameters are determined by which of the following parameters?
  • a) Double crystal Gamma rays graphs
  • b) Single crystal Gamma rays graphs
  • c) Double crystal X-ray photographs
  • d) Single crystal X-ray photographs
Q.11
Stress is caused on the crystal by which of the following factor?
  • a) External pressure
  • b) External strain applied
  • c) External change in temperature
  • d) Internal stress
Q.12
Which one of the following is an additional feature of the focusing cameras?
  • a) Crystal monochromator
  • b) Electron stopper
  • c) X-ray
  • d) Gamma rays detector
Q.13
Which of the following shapes are formed by the diffracted radiation in the powder method?
  • a) Spherical
  • b) Cubical
  • c) Circular
  • d) Conical
Q.14
Which of the following phenomenon occur when the waves originate from each line source in the optical grating?
  • a) Interference
  • b) Magnetic flux
  • c) Refraction
  • d) Reflection
Q.15
Which of the following factor is taken care while selecting the container in the process of vacuum evaporation?
  • a) Withstand high temperature
  • b) Chemically reactive
  • c) Conducting
  • d) Withstand low temperature
Q.16
Which of the following states the second law of electrolysis reaction?
  • a) Archimedes principle
  • b) Faraday’s law
  • c) Henry’s law
  • d) Einstein equation
Q.17
Intensities depends on which of the following factors?
  • a) Emission factor
  • b) Absorption factor
  • c) Solubility of the solid
  • d) Refraction factor
Q.18
Which of the following variables govern the different X-ray techniques?
  • a) Energy, sample, temperature
  • b) Heat, mass, proteins
  • c) Radiation, sample, detector
  • d) Radiation, diffraction, detector
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