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At serfdom's greatest extent, what percentage of Western Europeans were serfs?
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2. $\int \frac{x^{2}+1}{x\left(x^{2}-1\right)} d x$
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30. n-Propyl bromide on treatment with ethanolic potassium hydroxide produces (a) Propane (b) Propene (c) Propyne (d) Propanol
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What was the name of Pugin's book?
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When was Nazi Germany in a one-party system?
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35. The compound whose $0.1 \mathrm{M}$ solution is basic is : (a) ammonium acetate (b) ammonium chloride (c) ammonium sulphate (d) sodium acetate
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What author would Jerome rather read than the Bible?
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13. Which of the following is not the general solution of $2^{\cos 2 x}+1=3.2^{-\sin ^{2} x}$ ? a. $n \pi, n \in Z$ $\mathbf{b}\left(n+\frac{1}{2}\right) \pi, n \in Z$ c. $\left(n-\frac{1}{2}\right) \pi, n \in Z$ d none of these
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What is computer programming?
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What are the strangest phobias some people have and what causes them?
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36. ${ }_{90}^{234} \mathrm{Th}$ disintegrates to give ${ }_{82}^{206} \mathrm{~Pb}$ as the final product. How many alpha and beta particles are emitted during this process?
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21. For a $d$-electron, the orbital angular momentum is (a) $\sqrt{6}(h / 2 \pi)$ (b) $\sqrt{2}(h / 2 \pi)$ (c) $(h / 2 \pi)$ (d) $2(h / 2 \pi)$
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What is the second empires?
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68 If first-order reflection occurs in a crystal at Bragg angle 3.4${ }^{\circ}$, at what Bragg angle does second-order reflection occur from the same family of reflecting planes?
1
How do I get my questions answered?
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Example 7.18 When HCl reacts with finely powdered iron, it forms ferrous chloride and not ferric chloride. Why?
1
What kind of methods use Tarantino in his scripts?
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Question 37: Prove $\int_0^{\frac{\pi}{2}} \sin ^3 x d x=\frac{2}{3}$
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Who have a better orgasm: men or women?
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How could you hack someone’s mobile phone?
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What are qualifications needed for teaching in school?
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9. If the rate constant $k$ of a reaction is $1.6 \times 10^{-3}(\mathrm{~mol} / \mathrm{L})\left(\mathrm{min}^{-1}\right)$, the order of the reaction is (a) 0 (b) 1 (c) 2 (d) cannot be known
1
What are the safety precautions on handling shotguns proposed by the NRA in Alaska?
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What did SASO find wrong with the KInsey scale and Klein Sexual Orientation Grid?
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8. As per Hardy-Schulze formulation, the flocculation values of the following for ferric hydroxide sol are in the order: (a) $\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]<\mathrm{K}_{2} \mathrm{CrO}_{4}<\mathrm{KBr}=\mathrm{KNO}_{3}=\mathrm{AlCl}_{3}$ (b) $\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}...
1
How much did SAT exams cost as of 2002 in Nigeria?
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30. A block tied between two identical springs is in equilibrium. If upper spring is cut, then the acceleration of the block just after cut is $5 \mathrm{~ms}^{-2}$. Now if instead of upper string lower spring is cut, then the acceleration of the block just after the cut will be (Take $g=10 \mathrm{~m} / \mathrm{s}^{2}...
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5. Two equal resistances when connected in series to a battery consume electric power of $60 \mathrm{~W}$. If these resistances are now connected in parallel combination to the same battery, the electric power consumed will be (2019 Main, 11 Jan I) (a) $60 \mathrm{~W}$ (b) $30 \mathrm{~W}$ (c) $240 \mathrm{~W}$ (d) $12...
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34. In the NaCl crystal, which of the following facts is not true? (a) $\mathrm{Na}^{+}$ions form f.c.c. lattice (b) $\mathrm{Cl}^{-}$ions form f.c.c. lattice (c) $\mathrm{Na}^{+} \mathrm{Cl}^{-}$units form f.c.c. structure (d) CN of each $\mathrm{Na}^{+}$and $\mathrm{Cl}^{-}$is 6
1
What does Howard Stern think about Donald Trump's 2016 campaign?
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Where can I download an ftp client with code editor?
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Should I kiss my girlfriend?
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15. A piston filled with $0.04 \mathrm{~mol}$ of an ideal gas expands reversibly from $50.0 \mathrm{~mL}$ to $375 \mathrm{~mL}$ at a constant temperature of $37.0^{\circ} \mathrm{C}$. As it does so, it absorbs $208 \mathrm{~J}$ of heat. The values of $\mathrm{q}$ and $\mathrm{w}$ for the process will be: $(\mathrm{R}=...
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2. Preparation of Bakelite proceeds via reactions: [Main Jan. 08, 2020 (II)] (a) Electrophilic addition and dehydration (b) Condensation and elimination (c) Electrophilic substitution and dehydration (d) Nucleophilic addition and dehydration
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Lev Grossman: Who would win in a fight between Gandalf and Dumbledore?
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1. Correct order for the heat of combustion of the following is : ![](https://dataprep-doubtsolver-pureessence.s3.amazonaws.com/a010ad09-2fca-485d-ba37-a42f004ae321) (A) I $>$ II $>$ IV $>$ III (B) IV $>$ I $>$ II $>$ III (C) III $>$ I $>$ IV $>$ II (D) III $>$ II $>$ IV $>$ I
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Based on the recent threats and issues regarding the US, Russia and China, is World War 3 near?
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13. A gas can be taken from $A$ to $B$ via two different processes $A C B$ and $A D B$ ![](https://cdn.mathpix.com/cropped/2023_12_28_092f08a9ae3c385eb2ccg-276.jpg?height=233&width=267&top_left_y=2369&top_left_x=1456) When path $A C B$ is used $60 \mathrm{~J}$ of heat flows into the system and $30 \mathrm{~J}$ of wo...
1
Is NAFTA a good or bad thing for the US economy?
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What is wrong with me? Sometimes I wake up with extreme positivity and ambition and some other days I'm the most pessimistic depressed person.
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9. If $A=\left[a_{i j}\right]_{4 \times 4}$, such that $a_{i j}=\left\{\begin{array}{ll}2, & \text { when } i=j \\ 0, & \text { when } i \neq j\end{array}\right.$, then $\left\{\frac{\operatorname{det}(\operatorname{adj}(\operatorname{adj} A))}{7}\right\}$ is (where $\{\cdot\}$ represents fractional part function) a. $...
1
How do I stop thinking about thinking?
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Example 1.21 Find the domain of the functions. $$ f(x)=\frac{1}{1+2 \sin x} $$
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Instagram made me change my password, but I'm not logged into my Facebook and I don't know my email for the account. What should I do?
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5. Let $\alpha$ and $\beta$ be the roots of the quadratic equation $x^{2} \sin \theta-x(\sin \theta \cos \theta+1)+\cos \theta=0\left(0<\theta<45^{\circ}\right)$ and $\alpha<\beta$. Then, $\sum_{n=0}^{\infty} \alpha^{n}+\frac{(-1)^{n}}{\beta^{n}}$ is equal to (a) $\frac{1}{1-\cos \theta}-\frac{1}{1+\sin \theta}$ (b) $\...
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21. Find the equivalent capacitance across $A$ and $B$ for the arrangement shown in figure. All the capacitors are of capacitance $C$ ![](https://cdn.mathpix.com/cropped/2024_06_12_88c1c8d683adf388794bg-315.jpg?height=205&width=667&top_left_y=938&top_left_x=638) (a) $\frac{3 C}{14}$ (b) $\frac{C}{8}$ (c) $\frac{3 C}{1...
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4. An electric bulb is hanging over a table at a height of $1 \mathrm{~m}$ above it. The illuminance on the table directly below the bulb is 40 lux. The illuminance at a point on the table $1 \mathrm{~m}$ away from the first point will be about (a) 10 lux (b) 14 lux (c) 20 lux (d) 28 lux.
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What year is considered the transition between the classical period and the Middle Ages?
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2. A soap bubble, blown by a mechanical pump at the mouth of a tube, increases in volume, with time, at a constant rate. The graph that correctly depicts the time dependence of pressure inside the bubble is given by (2019 Main, 12 Jan II) (a) ![](https://cdn.mathpix.com/cropped/2023_12_28_092f08a9ae3c385eb2ccg-210....
1
Can you help me with tips for a successful long distance relationship?
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80. If odds against solving a question by three students are $2: 1$, $5: 2$ and 5:3, respectively, then probability that the question is solved only by one student is a. $31 / 56$ b. $24 / 56$ c. $25 / 56$ d. none of these
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26. A body of mass $10 \mathrm{~kg}$ lies on a rough inclined plane of inclination $\theta=\sin ^{-1} \frac{3}{5}$ with the horizontal. When the force of $30 \mathrm{~N}$ is applied on the block parallel to and upward the plane, the total force by the plane on the block is nearly along (a) $O A$ (b) $O B$ (c) $O C$ (d)...
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12. If $r, s, t$ are prime numbers and $p, q$ are the positive integers such that LCM of $p, q$ is $r^{2} s^{4} t^{2}$, then the number of ordered pairs $(p, q)$ is (2006, 3M) (a) 252 (b) 254 (c) 225 (d) 224
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8. $\quad$ For one mole of a van der Waal's gas when $b=0$ and $T=300 \mathrm{~K}$, the $P V$ vs, $1 / V$ plot is shown below. The value of the van der Waal's constant $a\left(\right.$ atm. liter $\left.\mathrm{mol}^{2}\right)$ is : ![](https://cdn.mathpix.com/cropped/2024_05_03_616bdce11c835394482dg-075.jpg?height=49...
1
What are the differences between metaphors and personification? What are some good examples?
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36. In thermodynamics, the $P-V$ work done is given by $$ w=-\int d V P_{e x t} $$ For a system undergoing a particular process, the work done is, $$ w=-\int d V\left(\frac{R T}{V-b}-\frac{a}{V^{2}}\right) $$ This equation is applicable to a (a) system that satisfies the van der Waals equation of state [Adv. 2020]...
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6. Statement 1: If a point $\left(x_{1}, y_{1}\right)$ lies in the shaded region $\frac{\dot{x}^{2}}{a^{2}}-\frac{y^{2}}{b^{2}}=1$, shown in the figure, then $\frac{x_{1}^{2}}{a^{2}}-\frac{y_{1}^{2}}{b^{2}}<0$. ![](https://cdn.mathpix.com/cropped/2024_06_29_7289080fb36ad07b6162g-443.jpg?height=431&width=742&top_left_y...
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30. In figure, an air lens of radius of curvature of each surface equal to $10 \mathrm{~cm}$ is cut into a cylinder of glass of refractive index 1.5. The focal length and the nature of lens are (a) $15 \mathrm{~cm}$ diverging (b) $15 \mathrm{~cm}$ converging (c) $10 \mathrm{~cm}$ diverging (d) $10 \mathrm{~cm}$ converg...
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4. The intensity of $X$-rays from a coolidge tube is plotted against wavelength $\lambda$ as shown in the figure. The minimum wavelength found is $\lambda_{c}$ and the wavelength of the $K_{\alpha}$ line is $\lambda_{k}$. As the accelerating voltage is increased ![](https://cdn.mathpix.com/cropped/2024_06_14_2617845...
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16. Match the following, choosing one item from column $\mathbf{X}$ and the appropriate item from column $\mathbf{Y}$. | X | Y | |-------------------------------|-------------------------| | (i) Decarboxylation | (a) Addition reaction | | (ii) Ozonolysis ...
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When did the United Nations Convention against Corruption join?
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What groups is named after the trait of growth by moulting or ecdysis?
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Can cannabis oil cure cancer?
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Which is the English song with best lyrics according to you?
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When did the Somer Isles Company take over managing Bermuda?
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30. Native silver metal forms a water soluble complex with a dilute aqueous solution of $\mathrm{NaCN}$ in the presence of (a) nitrogen (b) oxygen (c) carbon dioxide (d) argon
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52. Two moles of a perfect gas undergo the following processes: (a) a reversible isobaric expansion from (1.0 atm, 20.0L) to (1.0 atm, 40.0 $\mathrm{L})$ (b) a reversible isochoric change of state from $(1.0 \mathrm{~atm}, 40.0 \mathrm{~L})$ to $(0.5$ $\operatorname{atm}, 40.0 \mathrm{~L})$ (c) a reversible isother...
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What do religions share across their belief structures?
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24. If $f(x)$ and $g(x)$ are two positive and increasing functions, then which of the following is not always true? a. $[f(x)]^{g(x)}$ is always increasing h. if $[f(x)]^{(x)}$ is decreasing, then $f(x)<1$ c. if $[f(x)]^{g(x)}$ is increasing, then $f(x)>1$ d if $f(x) \triangleright 1$, then $[f(x)]^{g(x)}$ is increa...
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8. In a resonance tube experiment to determine the speed of sound in air, a pipe of diameter $5 \mathrm{~cm}$ is used. The air column in pipe resonates with a tuning fork of frequency $480 \mathrm{~Hz}$ when the minimum length of the air column is $16 \mathrm{~cm}$. Find the speed of sound in air at room temperature.
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How do I recover a forgotten Gmail password?
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What is the difference between welfare capitalism and social democracy?
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18. Consider a capacitor - charging circuit. Let $Q_{1}$ be the charge given to the capacitor in time interval of $20 \mathrm{~ms}$ and $Q_{2}$ be the charge given in the next time interval of $20 \mathrm{~ms}$. Let $10 \mu \mathrm{C}$ charge be deposited in a time interval $t_{1}$ and the next $10 \mu \mathrm{C}$ char...
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43. The value of $x$ which satisfies equation $2 \tan ^{-1} 2 x=\sin ^{-1} \frac{4 x}{1+4 x^{2}}$ is valid in the interval a. $\left[\frac{1}{2}, \infty\right)$ $\mathbf{h}\left(-\infty,-\frac{1}{2}\right]$ c. $[-1,1]$ d $\left[-\frac{1}{2}, \frac{1}{2}\right]$
1
Can someone help me learn how to use Paytm?
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Should I study for the GRE?
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2. A plane mirror is falling vertically as shown in the figure. If $S$ is a point source of light, the rate of increase of the length $A B$ is ![](https://cdn.mathpix.com/cropped/2024_06_14_261784541b5e0ce049e6g-074.jpg?height=259&width=603&top_left_y=1111&top_left_x=665) (a) directly proportional to $x$ (b) constant ...
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10. A wall has two layers $A$ and $B$ each made of different materials. Both the layers have the same thickness. The thermal conductivity of material $A$ is twice of $B$. Under thermal equilibrium the temperature difference across the layer $B$ is $36^{\circ} \mathrm{C}$. The temperature difference across layer $A$ is ...
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How do I know whether I am in love with a person or not?
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What type of paper is The Siasat Daily?
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2. (a) Find the frequencies of revolution of electrons in $n=1$ and $n=2$ Bohr orbits. (b) What is the frequency of the photon emitted when an electron in an $n=2$ orbit drops to an $n=1$ hydrogen orbit? (c) An electron typically spends about $10^{-8} \mathrm{~S}$ in an excited state before it drops to a lower state ...
1
Who is she?
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Who has argued that emotions are discrete?
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New Delhi is located on the floodplains of what river?
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What is the best site to download anime torrents?
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56. The nitrogen oxide(s) that contain(s) $\mathrm{N}-\mathrm{N}$ bond(s) is(are) (a) $\mathrm{N}_{2} \mathrm{O}$ (b) $\mathrm{N}_{2} \mathrm{O}_{3}$ (c) $\mathrm{N}_{2} \mathrm{O}_{4}$ (d) $\mathrm{N}_{2} \mathrm{O}_{5}$
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20. Two blocks of masses $2 \mathrm{~kg}$ and $4 \mathrm{~kg}$ are connected by a light string and kept on horizontal surface. A force of $16 \mathrm{~N}$ is acted on $4 \mathrm{~kg}$ block horizontally as shown in figure. Besides, it is given that coefficient of friction between $4 \mathrm{~kg}$ and ground is 0.3 and ...
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What two fields began to grow apart?
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What does it take to become a professional F1 driver?
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23. In Wilkinson's catalyst, the hybridisation of central metal ion and its shape are respectively: (a) $s p^{3} d$, trigonal bipyramidal (b) $d^{2} s p^{3}$, octahedral (c) $d s p^{2}$, square planar (d) $s p^{3}$, tetrahedral
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8. A string of length $1 \mathrm{~m}$ and mass $5 \mathrm{~g}$ is fixed at both ends. The tension in the string is $8.0 \mathrm{~N}$. The string is set into vibration using an external vibrator of frequency $100 \mathrm{~Hz}$. The separation between successive nodes on the string is close to (a) $16.6 \mathrm{~cm}$ (...
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What are the most popular newspapers in the UK?
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5. Just on crossing the yield region, the material will have (a) increased and breaking stress (b) reduced and breaking stress (c) constant stress (d) None of these
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Why do software companies like Google, Facebook, LinkedIn, Microsoft etc prefer to set up there offices in Bangalore/Hyderabad over Mumbai?
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52. If $X=\left\{4^{n}-3 n-1: n \in N\right\}$ and $Y=\{9(n-1): n \in N\}$, where $N$ is the set of natural numbers, then $X \cup Y$ is equal to (a) $N$ (b) $Y-X$ (c) $X$ (d) $Y$
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What do other people use to determine a persons sexual idenity?
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5. In a YDSE experiment, $d=1 \mathrm{~mm}, \lambda=6000 \AA$ and $D=1 \mathrm{~m}$. The minimum distance between two points on screen having $75 \%$ intensity of the maximum intensity will be (a) $0.50 \mathrm{~mm}$ (b) $0.40 \mathrm{~mm}$ (c) $0.30 \mathrm{~mm}$ (d) $0.20 \mathrm{~mm}$
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How can I get my lost Samsung j7 back?
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What improvements can SCMP news outlet make for its foreign subscribers and readers?
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What was a major concern for Western civilization during the 21 century?
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