Total Questions90
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Physics

1. If $L$ and $C$ are inductance and capacitance respectively, then the dimensional formula of $(LC)^{-\frac{1}{2}}$ is:

Physics

2. Pressure is a scalar quantity because:

Physics

3. If the component of the vector $\vec{A}$ along the vector $\vec{B}$ is twice the component of $\vec{B}$ along $\vec{A}$, then the ratio of magnitudes of vectors $\vec{A}$ and $\vec{B}$ is:

Physics

4. The ratio of time taken by a freely body to travel first $5\text{ m}$, second $5\text{ m}$, third $5\text{ m}$ distances is:

Physics

5. The sphere $A$ of mass $m$ moving with a constant velocity hits another sphere $B$ of mass $2m$ at rest. If the coefficient of restitution is $0.4$, the ratio of the velocities of the spheres $A$ and $B$ after collision is:

Physics

6. Two bodies of masses $1\text{ g}$ and $4\text{ g}$ are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is:

Physics

7. The angular speed of a particle moving in a circular path is doubled. Then, the centripetal acceleration of the particle is:

Physics

8. The ratio of the radii of two planets is $r$ and the ratio of accelerations due to gravity on the planets is $x$. Then the ratio of the escape velocities from the planets is:

Physics

9. If the length of a string is $P$ when the tension in it is $6\text{ N}$ and its length is $Q$ when the tension is $8\text{ N}$, the original length of the string is:

Physics

10. In a time $t$ amplitude of vibrations of a damped oscillator becomes half of its initial value, then the mechanical energy of the oscillator decreases by:

Physics

11. If the work done in blowing a soap bubble of radius $R$ is $W$, then the work done in blowing the soap bubble of radius $2R$ is:

Physics

12. A thin uniform wire of mass $m$ and linear mass density $\rho$ is bent in the form of a circular loop. The moment of inertia of the loop about its diameter is:

Physics

13. If we plot a graph between volume $V$ and inverse of pressure $p$ (i.e. $\frac{1}{p}$) for an ideal gas at constant temperature $T$, the curve so obtained is:

Physics

14. A big liquid drop splits into $n$ similar drops under isothermal conditions, then in the process:

Physics

15. When the temperature of a wire is increased from $303\text{ K}$ to $356\text{ K}$, the resistance of the wire increases by $10\%$. The temperature coefficient of resistance of the material of the wire is:

Physics

16. The electric field of an electromagnetic wave is given by $\vec{E}(x,t) = E_0 \hat{z}\cos(ax + bt)$. If $c$ is the speed of light, then the value of $b$ is:

Physics

17. The electric flux due to an electric field $\vec{E} = (8\hat{i} + 13\hat{j})\text{ N}\cdot\text{C}^{-1}$ through an area $3\text{ m}^2$ lying in the $XZ$-plane is:

Physics

18. Three capacitors of capacitance $10\,\mu\text{F}$, $5\,\mu\text{F}$ and $20\,\mu\text{F}$ are connected in series with a $14\text{ V}$ DC supply. The charge on $5\,\mu\text{F}$ capacitor is:

Physics

19. A straight wire of length $20\text{ cm}$ carrying a current of $\dfrac{3}{\pi^2}\text{ A}$ is bent in the form of a circle. The magnetic field at the centre of the circle is:

Physics

20. The magnetic susceptibility of ferromagnetic materials is:

Physics

21. The energy stored in a coil of inductance $80\text{ mH}$ carrying a current of $2.5\text{ A}$ is:

Physics

22. An inductor of inductive reactance $R$, a capacitor of capacitive reactance $2R$ and a resistor of resistance $R$ are connected in series to an AC source. The power factor of the series $L$-$C$-$R$ circuit is:

Physics

23. The correct statement among the following is:

Physics

24. A person is unable to read a newspaper without his glasses. He is most probably suffering from:

Physics

25. The brightness of a star depends on its:

Physics

26. The refractive index of the material of a small angled prism is $1.6$. If the angle of minimum deviation is $4.2^\circ$, the angle of the prism is:

Physics

27. In Young's double slit experiment with light of wavelength $\lambda$, the intensity of light at a point on the screen where the path difference becomes $\dfrac{\lambda}{3}$ is ($I$ is intensity of the central bright fringe):

Physics

28. The additional energy that should be given to an electron to reduce its de-Broglie wavelength from $1\text{ nm}$ to $0.5\text{ nm}$ is:

Physics

29. If the output of a NAND gate is given as input to a NOT gate, the resultant gate is:

Physics

30. After the decay of a single $\beta$-particle, the parent and daughter nuclei are:

Chemistry

31. What would be the molarity of one litre solution of $22.2\text{ g}$ of $\mathrm{CaCl_2}$?

Chemistry

32. Ammonia ($\mathrm{NH_3}$) obtained from different sources always has same proportion of nitrogen and hydrogen. It proves the validity the law of:

Chemistry

33. Which one of the following has different number of molecules? (All are kept at normal temperature and pressure)

Chemistry

34. Combination of one volume of nitrogen with three volumes of hydrogen produces:

Chemistry

35. Which one of the following species is not capable of showing disproportionation reaction?

Chemistry

36. Which one of the following is a reduction reaction?

Chemistry

37. The desirable range of $\mathrm{pH}$ for drinking water is:

Chemistry

38. Electrolysis of aqueous copper (II) sulphate between $\mathrm{Pt}$ electrodes gives '$X$' at anode and '$Y$' at cathode. $X$ and $Y$ are respectively:

Chemistry

39. The number of lone pairs of electrons on central atom of $\mathrm{ClF_3}$, $\mathrm{NF_3}$, $\mathrm{SF_4}$, $\mathrm{XeF_4}$ respectively are:

Chemistry

40. Xenon hexafluoride on partial hydrolysis gives '$X$' and $\mathrm{HF}$. The shape of '$X$' is:

Chemistry

41. Which one of the following elements will not react with dilute $\mathrm{HCl}$ to produce $\mathrm{H_2}$?

Chemistry

42. At $61\text{ K}$, one mole of an ideal gas of $1.0\text{ L}$ volume expands isothermally and reversibly to a final volume of $10.0\text{ L}$. What is the work done in the expansion?

Chemistry

43. Graphite is a much better conductor of heat and electricity than diamond. This is due to the fact that each carbon atom in graphite:

Chemistry

44. Which one of the following is water gas?

Chemistry

45. The hydroxide of which of the following metal reacts with both acid and alkali?

Chemistry

46. Carbon on reaction with hot conc. $\mathrm{H_2SO_4}$, gives two oxides along with $\mathrm{H_2O}$. What is the nature of these two oxides?

Chemistry

47. The set of elements which obey the general electronic configuration $(n-1)d^{1-10}ns^2$ is:

Chemistry

48. Identify the element for which $+1$ oxidation state is more stable than $+3$ oxidation state:

Chemistry

49. Copper matte is a mixture of:

Chemistry

50. In which of the following ions the spin only magnetic moment is lowest?

Chemistry

51. The main constituent of vinegar is:

Chemistry

52. An alkene $X$ on ozonolysis gives a mixture of simplest ketone ($Y$) and 3-pentanone. The IUPAC name of the alkene $X$ is:

Chemistry

53. The increasing order of boiling points of the following is: (I) $\mathrm{CH_3{-}O{-}CH_3}$, (II) $\mathrm{CH_3CHO}$, (III) $\mathrm{CH_3CH_2CH_3}$, (IV) $\mathrm{CH_3CH_2OH}$

Chemistry

54. Consider the reaction sequence: $\mathrm{CH_3CHO} \xrightarrow[\text{ii. } \mathrm{H_2O/H^+}]{\text{i. } \mathrm{CH_3MgBr}} (A) \xrightarrow{\mathrm{H_2SO_4},\, \Delta} (B) \xrightarrow[\text{ii. } \mathrm{H_2O_2/OH^-}]{\text{i. } \mathrm{B_2H_6}} (C)$. (A) and (C) are:

Chemistry

55. The correct acidity order of phenol (I), 4-hydroxybenzaldehyde (II) and 3-hydroxybenzaldehyde (III) is:

Chemistry

56. The reactivity order of the following molecules towards $S_N1$ reaction is: (I) Allyl chloride, (II) Chlorobenzene, (III) Ethyl chloride

Chemistry

57. Cyclopentanol on reaction with $\mathrm{NaH}$ followed by $\mathrm{CS_2}$ and $\mathrm{CH_3I}$ produces a/an:

Chemistry

58. If aniline is treated with conc. $\mathrm{H_2SO_4}$ and heated at $200^\circ\mathrm{C}$, the product is:

Chemistry

59. Among the following compounds, which one is not primarily responsible for depletion of ozone layer in stratosphere?

Chemistry

60. $\mathrm{ADP}$ and $\mathrm{ATP}$ differ in the number of:

English
Reading Passage:

"Science cannot reduce the magic of a sunset to arithmetic nor can it express friendship with a formula," observed the eminent medical researcher Dr. Louis Orr. He added, "Also beyond science's mastery of nature are love and laughter, pain and loneliness, and insights into truth and beauty." This distancing of science from the human condition perhaps explains why most foreign tourists visiting Britain flock predictably to see the hallowed homes of playwrights, writers, and poets, but choose to ignore the habitations where its eminent scientists lived and worked.

61. Why is it that science cannot express friendship with a formula?

English
Reading Passage:

"Science cannot reduce the magic of a sunset to arithmetic nor can it express friendship with a formula," observed the eminent medical researcher Dr. Louis Orr. He added, "Also beyond science's mastery of nature are love and laughter, pain and loneliness, and insights into truth and beauty." This distancing of science from the human condition perhaps explains why most foreign tourists visiting Britain flock predictably to see the hallowed homes of playwrights, writers, and poets, but choose to ignore the habitations where its eminent scientists lived and worked.

62. The word "magic" refers to:

English
Reading Passage:

"Science cannot reduce the magic of a sunset to arithmetic nor can it express friendship with a formula," observed the eminent medical researcher Dr. Louis Orr. He added, "Also beyond science's mastery of nature are love and laughter, pain and loneliness, and insights into truth and beauty." This distancing of science from the human condition perhaps explains why most foreign tourists visiting Britain flock predictably to see the hallowed homes of playwrights, writers, and poets, but choose to ignore the habitations where its eminent scientists lived and worked.

63. Which of the following are beyond science's reach according to the passage?

English
Reading Passage:

"Science cannot reduce the magic of a sunset to arithmetic nor can it express friendship with a formula," observed the eminent medical researcher Dr. Louis Orr. He added, "Also beyond science's mastery of nature are love and laughter, pain and loneliness, and insights into truth and beauty." This distancing of science from the human condition perhaps explains why most foreign tourists visiting Britain flock predictably to see the hallowed homes of playwrights, writers, and poets, but choose to ignore the habitations where its eminent scientists lived and worked.

64. The verb "flock" refers to:

English
Reading Passage:

"Science cannot reduce the magic of a sunset to arithmetic nor can it express friendship with a formula," observed the eminent medical researcher Dr. Louis Orr. He added, "Also beyond science's mastery of nature are love and laughter, pain and loneliness, and insights into truth and beauty." This distancing of science from the human condition perhaps explains why most foreign tourists visiting Britain flock predictably to see the hallowed homes of playwrights, writers, and poets, but choose to ignore the habitations where its eminent scientists lived and worked.

65. Why according to the author do tourists prefer to visit hallowed homes of playwrights, writers, and poets rather than visiting the habitation of eminent scientists?

English

66. Choose the synonym of: OBNOXIOUS

English

67. Choose the synonym of: COVENANT

English

68. Choose the synonym of: DEFERENCE

English

69. Choose the synonym of: ABROGATE

English

70. Choose the synonym of: INTREPID

English

71. The police sprayed teargas ________ on the protesters.

English

72. We are happy to ________ the receipt of your order No. 1 dated...

English

73. All jobs are respectable ________ of their nature.

English

74. Nadheeka was musing ________ memories of the past.

English

75. The lame boy tried to climb up the staircase without ________ help.

English

76. Choose the antonym of: OSTRACISE

English

77. Choose the antonym of: DENSE

English

78. Choose the antonym of: FETTER

English

79. Choose the antonym of: HARMONY

English

80. Choose the antonym of: MYTH

English

81. What is the meaning of: "under a cloud"

English

82. What is the meaning of: "face the music"

English

83. What is the meaning of: "all at sea"

English

84. What is the meaning of: "The story does not hold water."

English

85. What is the meaning of: "His statement is an out-and-out lie."

English

86. Choose the correct word for: hate, detest, loathe

English

87. Choose the correct word for: decorate, beautify, adorn

English

88. Choose the correct word for: support, strengthen, reinforce

English

89. Choose the correct word for: reduce, shrink, lessen

English

90. Choose the correct word for: confuse, puzzle, baffle