Post Code:: 700
Series: B
1. Kirchhoff’s laws are based on the conservation of
 Energy and charge
 Charge and energy
 Mass and charge
 None of these
2. Two heater wires of equal lengths are first connected in series and then in parallel. The ratio of heat produced in two cases is:
 2:1
 1:2
 4:1
 1:4
3. A kilowatthour is a unit of
 Energy
 Electric current
 Electric charge
 Power
4. Susceptibility is positive for
 Paramagnetic substances
 Ferromagnetic substances
 Nonmagnetic substances
 Diamagnetic substances
5. For formation of permanent magnets, the material should have
 High coercivity
 Low coercivity
 Low retentivity
 Both a and b
6. Tesla is a unit of magnetic
 Field
 Flux
 Induction
 Moment
7. A dynamo works on the principle of
 Electromagnetic induction
 Induced current
 Induced magnetism
 Faraday’s effect
8. Thermopile is used for
 Measuring the e.m.f.
 Measuring the current
 Converting heat energy into electrical energy
 Measuring and detecting the heat radiation
9. Which of the following does not support the wave nature of light?
 Interference
 Diffraction
 Polarization
 Photoelectric effect
10. Which of the following is conserved, when light waves interfere?
 Intensity
 Energy
 Amplitude
 Momentum
11. Two lenses having powers + 6 D and 4 D are placed in contact. The power of the combination is
 2 D
 4 D
 +4D
 +2 D
12. The type of bonds in a silicon crystal is
 Ionic
 Metallic
 Covalent
 Vander Walls
13. If A and B are any two sets, then AB is equal to
 BA
 AᴗB
 AᴖB
 AᴖB’
Ans: C
15. Maximum value of sin x + cos x is
 1
 2
 √2
 1/√2
16. The amplitude of O is
 0
 π
 π/2
 Not defined
17. If a,b,c are real number such that a >b, c > 0, then
 Ac < bc
 Ac > bc
 Ac > bc
 None of these
18. Number of diagonals of a convex hexagon is
 3
 6
 9
 12
19. The number of dissimilar terms in the expansion of (x +y+ z)^{6} is
 7
 42
 28
 21
20. The 8^{th} term of the sequence
1,1,2,4,7,13 …………. Is
 44
 54
 64
 24
21. Slope of line which cuts off intercepts of equal lengths on the axes is
 1
 2

√3
 None of these
22. The number of common tangents to the circles x^{2} + y^{2} 4x 6y – 12 =0 and x^{2} +y^{2}+6x + 18y +26 = 0, is
 1
 2
 3
 4
23. The length of foot of perpendicular drawn from the point P(3,4,5) on y axis is
 √41

√34
 5
 None of these
24. If y = , then at x = 0 is
 2
 0
 1/2
 Does not exist
25. The standard deviation of the data 6,5,9,13,12,8,10 is
 6
 √6
 52/7
 √52/7
26. In a nonleap year, the probability of having 53 Tuesday or 53 Wednesday is
 1/7
 2/7
 3/7
 None of these
27. If A = {2,5}, then the total number of relations defined from A to B is
 2^{3}
 2^{2}
 2^{4}
 None of these
28. The value of sin^{1}x + cos^{1}x is
 π/2
 π
 π/2
 None of the above
29. A matrix 2 x 3 has how many elements?
 5
 6
 7
 None of these
30.
 0
 1
 ½
 1/2
31. The second derivative of e^{mx} is
 me^{mx}
 e^{mx}
 m^{2} e^{mx}
 e^{mx}/m
32. the slope of the tangent to the curve y=x^{3}x at x=2 is
 0
 1
 11
 None of thee
_{33. }
 π/6
 π/12
 π/24
 π/4
34. The area of the circle x^{2}+y^{ 2} = 16 is
 16π
 64π
 24π
 None of these
35. The differential equation of all parabolas whose axes are parallel to axis of y satisfies.
 D^{2}y/dx^{2} =0
 D^{3} y/dx^{3} = 0
 D^{3} x/dy^{3} = 0
 None of these
36. The vectors a and b are perpendicular if and only if a. b is equal to
 1
 1
 0
 None of these
37. The angle between the lines 2x = 3y = z and 6x = y = 4z is
 60°
 45°
 90°
 30°
38. A die is thrown once, then the probability of a getting a number greater than 3 is
 ½
 2/3
 6
 9
39. The mean and variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is
 37/256
 219/256
 128/256
 28/256
40. The number of arbitrary constants in the particular solution of a differential equation of third order is
 3
 2
 1
 0
41. ∫a^{x }dx equals
 a^{x} +c
 a^{x} /log a + c
 a^{x} log a+c
 log a /a^{x} +c
42. Area lying between the curves y^{2} = 4x and y = 2 is
 2/3
 1/3
 ¼
 ¾
43. If the concentration of glucose (C_{6} H_{12} O_{6}) in the blood is 0.9 g/^{1}, what will be the molarity of glucose in the blood ?
 5 m
 50 m
 0.005 m
 0.5 m
44. Number of significant figures in 0.050 is
 1
 2
 3
 4
45. The number of spherical nodes for 4d orbital is
 Zero
 One
 Two
 Three
46. Which of the following elements has the highest first ionization energy?
 Rb
 Na
 K
 Sc
47. In which of the following all the bonds are not equal?
 Xe F_{4}
 BF_{4}
 C_{2} H_{4}
 SiF_{4}
48. Gases deviate from ideal behavior because of molecules.
 Are colorless
 Are spherical
 Attract each other
 Have high speeds
49. In a facecentered cubic lattice, a unit cell is equally shared by how many faces?
 2
 4
 6
 8
50. When a liquid boils there is an increase in
 Entropy
 Heat of vaporization
 Free energy
 None of these
51. Which of the following salts will give the highest pH in the water?
 CuSO_{4}
 KCl
 NaCl
 Na_{2} CO_{3}
52. In which of the following compounds, an element exhibits two different oxidation states?
 NH_{2} OH
 NH_{4} NO_{3}
 N_{2} H_{4}
 N_{3} H
53. The oxidation state of oxygen in H_{2}O_{2 }is
 1
 +1
 2
 +2
54. Which of the following is the strongest base?
 LiOH
 NaOH
 KOH
 CsOH
55. The most commonly used reducing agent is
 AlCl_{3}
 PbCl_{2}
 SnCl_{4}
 SnCl_{2}
Read the next part: ॥ Part2॥ Part3॥
Stay updated with us:
Q. 44 Number of significant figures in 0.050
OF TGT NON MEDICAL 2019 PAPER
The right answer is B: (2)