NFAT Entrance Exam Mock Test for M.Sc. Forensic Science 2025
Physics (25 Questions)
1. A body of mass 2 kg is accelerated at 3 m/s². The net force acting on it is:
2. A wave has a frequency of 500 Hz and a speed of 350 m/s. Its wavelength is:
3. The focal length of a concave mirror is 20 cm. An object is placed 30 cm from the mirror. The image distance is:
4. The resistance of a wire of length 2 m and cross-sectional area 1 mm² is 0.4 Ω. If the resistivity of the material is 1.6 × 10⁻⁸ Ω·m, the length of another wire of the same material with resistance 0.8 Ω and same cross-sectional area is:
5. A ball is thrown vertically upward with an initial velocity of 20 m/s. The time taken to reach the maximum height (g = 9.8 m/s²) is:
6. The energy stored in a spring with spring constant 100 N/m when stretched by 0.2 m is:
7. A convex lens forms a real image twice the size of the object. If the object distance is 15 cm, the focal length of the lens is:
8. The half-life of a radioactive isotope is 12 hours. The time taken for 75% of the sample to decay is:
9. The electric field at a point 0.1 m from a point charge of 2 µC is:
10. The angular momentum of a rotating object with moment of inertia 2 kg·m² and angular velocity 5 rad/s is:
11. The critical angle for a medium with refractive index 1.414 relative to air is:
12. The power dissipated in a resistor of 10 Ω carrying a current of 2 A is:
13. The time period of a simple pendulum of length 1 m at a place where g = 9.8 m/s² is:
14. The work done in moving a charge of 3 µC in an electric field from a point at 100 V to a point at 200 V is:
15. The de Broglie wavelength of an electron accelerated through 100 V (h = 6.626 × 10⁻³⁴ J·s, m = 9.11 × 10⁻³¹ kg) is approximately:
16. The speed of sound in air at 25°C is approximately:
17. The pressure of an ideal gas is doubled while its volume is halved at constant temperature. The new pressure is:
18. The focal length of a lens with power -2 D is:
19. The magnetic field at the center of a circular coil of radius 0.1 m carrying a current of 2 A is:
20. The kinetic energy of a 2 kg object moving at 5 m/s is:
21. The efficiency of a Carnot engine operating between 400 K and 300 K is:
22. The wavelength of light emitted by an electron transitioning from n=3 to n=2 in a hydrogen atom is approximately (R = 1.097 × 10⁷ m⁻¹):
23. The torque on a dipole of moment 0.5 C·m in an electric field of 2 × 10³ N/C at an angle of 90° is:
24. The moment of inertia of a thin rod of mass M and length L about an axis perpendicular to its length through its center is:
25. The viscosity of a fluid is measured in:
Chemistry (25 Questions)
26. The hybridization of the central atom in PCl₅ is:
27. The standard enthalpy of formation of NH₃(g) is -46 kJ/mol. The enthalpy change for the decomposition of 2 moles of NH₃(g) is:
28. The pH of a 0.01 M HCl solution is:
29. The bond order of O₂⁻ is:
30. The rate constant of a first-order reaction is 0.02 s⁻¹. The half-life is:
31. The oxidation number of sulfur in H₂SO₄ is:
32. The IUPAC name of CH₃CH₂COOH is:
33. The coordination number of the central ion in [Co(NH₃)₆]³⁺ is:
34. The number of moles of NaOH required to neutralize 0.1 mol of H₂SO₄ is:
35. The shape of the XeF₄ molecule according to VSEPR theory is:
36. The Gibbs free energy change for a process is negative. The process is:
37. The molar conductivity of a 0.01 M solution of NaCl is 126 S cm² mol⁻¹. The conductivity of the solution is:
38. The functional group in CH₃OH is:
39. The order of a reaction with rate law rate = k[A]² is:
40. The magnetic moment of [Ni(CN)₄]²⁻ is (Ni atomic number = 28):
41. The solubility product of AgCl is 1.8 × 10⁻¹⁰. The solubility of AgCl in water is:
42. The catalyst used in the contact process for sulfuric acid production is:
43. The degree of dissociation of a 0.1 M weak acid with Ka = 1 × 10⁻⁵ is:
44. The number of sigma and pi bonds in ethene (C₂H₄) is:
45. The standard electrode potential of Cu²⁺/Cu is +0.34 V, and that of Fe²⁺/Fe is -0.44 V. The cell potential of the Fe-Cu cell is:
46. The major product of the reaction of ethene with Br₂ in CCl₄ is:
47. The crystal field splitting energy (Δ₀) for [Co(NH₃)₆]³⁺ is higher than that for:
48. The van’t Hoff factor for a 0.1 M solution of K₂SO₄ is:
49. The primary product of the ozonolysis of ethene followed by reductive hydrolysis is:
50. The equilibrium constant for the reaction N₂(g) + O₂(g) ⇌ 2NO(g) is 0.1 at 2000 K. The equilibrium constant for 2NO(g) ⇌ N₂(g) + O₂(g) is:
Biology (25 Questions)
51. The number of ATP molecules produced per glucose molecule during the Krebs cycle is:
52. The anticodon for the codon AUG on mRNA is:
53. The Hardy-Weinberg equilibrium assumes:
54. The site of protein synthesis in a cell is:
55. The restriction enzyme EcoRI cuts DNA at the sequence:
56. The primary source of genetic variation in a population is:
57. The hormone responsible for regulating calcium levels in blood is:
58. The process of DNA synthesis is called:
59. The number of chromosomes in a human somatic cell is:
60. The enzyme that catalyzes the conversion of pyruvate to lactate in anaerobic conditions is:
61. The C4 pathway in plants is an adaptation to:
62. The neurotransmitter responsible for inhibitory synaptic transmission is:
63. The primary site of glucose reabsorption in the nephron is:
64. The genetic disorder caused by an extra chromosome 21 is:
65. The process by which bacteria take up DNA from the environment is:
66. The pigment responsible for capturing light in photosynthesis is:
67. The term ‘homeostasis’ refers to:
68. The enzyme responsible for unwinding DNA during replication is:
69. The organelle responsible for detoxification in a cell is:
70. The technique used to amplify DNA segments is:
71. The hormone that regulates sodium reabsorption in the kidneys is:
72. The stage of meiosis where crossing over occurs is:
73. The molecule that carries amino acids to the ribosome during protein synthesis is:
74. The primary function of the lysosome is:
75. The term ‘apoptosis’ refers to:
Basics of Forensic Science (25 Questions)
76. The technique used to separate DNA fragments in forensic analysis is:
77. The primary classification of fingerprints includes:
78. The advantage of mitochondrial DNA in forensic analysis is its:
79. The confirmatory test for blood at a crime scene is:
80. The technique used to analyze gunshot residue is:
81. The angle of impact of a bloodstain is calculated using:
82. The primary method for analyzing toxic substances in biological samples is:
83. The time since death can be estimated by measuring:
84. The technique used to compare fiber samples in forensic investigations is:
85. The primary role of a forensic serologist is to:
86. The technique used to detect latent fingerprints on non-porous surfaces is:
87. The primary source of error in DNA analysis is:
88. The technique used to analyze paint samples is:
89. The primary role of a forensic odontologist is to:
90. The primary method for analyzing the chemical composition of explosives is:
91. The primary purpose of maintaining the chain of custody is to:
92. The technique used to analyze the composition of bone samples is:
93. The primary method for estimating the time since death using insect activity is:
94. The primary source of mitochondrial DNA in forensic analysis is:
95. The technique used to analyze bullet striations is:
96. The primary method for detecting latent fingerprints on metal surfaces is:
97. The primary purpose of forensic anthropology is to:
98. The primary method for analyzing the chemical composition of inks is:
99. The primary purpose of forensic toxicology is to:
100. The primary method for determining the presence of saliva at a crime scene is:
No comments:
Post a Comment