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Which company stocks in NSE/BSE have given you maximum returns, and thus you are holding them for a long period? | 0 |
Problem 7.14
The species: $\mathrm{H}_{2} \mathrm{O}, \mathrm{HCO}_{3}^{-}, \mathrm{HSO}_{4}^{-}$and $\mathrm{NH}_{3}$ can act both as Bronsted acids and bases. For each case give the corresponding conjugate acid and conjugate base. | 1 |
What is best way to start learning programming? | 0 |
What is the value of 1AMU? | 0 |
Which two studies where created by Alfred C. KInsey? | 0 |
5. Consider a spherical shell of radius $R$ at temperature $T$. The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume $u=\frac{U}{V} \propto T^{4}$ and pressure $p=\frac{1}{3}\left(\frac{U}{V}\right)$. If the shell now undergoes an adiabatic expansion, the ... | 1 |
2. For energy density, power and intensity of any wave choose the correct options.
(a) $u$ =energy density $=\frac{1}{2} \rho \omega^{2} A^{2}$
(b) $P=$ power $=\frac{1}{2} \rho \omega^{2} A^{2} v$
(c) $I=$ intensity $=\frac{1}{2} \rho \omega^{2} A^{2} S v$
(d) $I=\frac{P}{S}$ | 1 |
Do people find dimples attractive? | 0 |
1. Let $C_{1}: x^{2}+y^{2}=1 ; C_{2}:(x-10)^{2}+y^{2}=1$ and $C_{3}: x^{2}+y^{2}-10 x-42 y+457=0$ be three circles. A circle $C$ has been drawn to touch circles $C_{1}$ and $C_{2}$ externally and $C_{3}$ internally. Now circles $C_{1}, C_{2}$ and $C_{3}$ start rolling on the circumference of circle $C$ in anticlockwise... | 1 |
9. A wire has a mass $(0.3 \pm 0.003) \mathrm{g}$, radius $(0.5 \pm 0.005) \mathrm{mm}$ and length $(6 \pm 0.06) \mathrm{cm}$. The maximum percentage error in the measurement of its density is
(a) 1
(b) 2
(c) 3
(d) 4 | 1 |
38. Solution of the equation $\cos ^{2} x \frac{d y}{d x}-(\tan 2 x) y=\cos ^{4} x$, $|x|<\frac{\pi}{4}$, when $y\left(\frac{\pi}{6}\right)=\frac{3 \sqrt{3}}{8}$ is
a. $y=\tan 2 x \cos ^{2} x$
b. $y=\cot 2 x \cos ^{2} x$
c. $y=\frac{1}{2} \tan 2 x \cos ^{2} x$
d. $y=\frac{1}{2} \cot 2 x \cos ^{2} x$ | 1 |
While natural occurrences can cause famine, what determines the severity of it? | 0 |
20. Number of atoms in 12 g of ${ }_6^{12} \mathrm{C}$ is
(a) 6
(b) 12
(c) $6.022 \times 10^{23}$
(d) $12 \times 6.022 \times 10^{23}$ | 1 |
2. If $2+i \sqrt{3}$ is a root of the equation $x^{2}+p x+q=0$, where $p$ and $q$ are real, then $(p, q)=$ $\qquad$ , ). $\qquad$ | 1 |
17. In the leaching method, bauxite ore is digested with a concentrated solution of $\mathrm{NaOH}$ that produces ' $\mathrm{X}$ '. When $\mathrm{CO}_{2}$ gas is passed through the aqueous solution of ' $\mathrm{X}$ ', a hydrated compound ' $\mathrm{Y}$ ' is precipitated. ' $X$ ' and ' $Y$ ' respectively are.
(a) $\... | 1 |
When were the Netherlands' colonies annexed by Napoleon? | 0 |
17. Among the following, the correct statement(s) is (are)
(a) $\mathrm{Al}\left(\mathrm{CH}_{3}\right)_{3}$ has the three-centre two-electron bonds in its dimeric structure
(b) $\mathrm{BH}_{3}$ has the three-centre two-electron bonds in its dimeric structure
(c) $\mathrm{AlCl}_{3}$ has the three-centre two-electr... | 1 |
10. The angle between the tangents to the curves $y=x^{2}$ and $x=y^{2}$ at $(1,1)$ is
a. $\cos ^{-1} \frac{4}{5}$
b. $\sin ^{-1} \frac{3}{5}$
c. $\tan ^{-1} \frac{3}{4}$
d. $\tan ^{-1} \frac{1}{3}$ | 1 |
13. How many elements of unsaturation are implied by the molecular formula C 5H 5NO2
?
(A) 0 (B) 1 (C) 2 (D) 3
(E) 4 | 1 |
What is the best way to read philosophy? | 0 |
What is a program to print out the first 100 odd numbers and add the largest 4 odd numbers from them? | 0 |
1. When we see an object, the image formed on the retina is
(a) real
(b) virtual
(c) erect
(d) inverted. | 1 |
How long does it usually take to set up a company account for Apple's Developer Program? | 0 |
16. The area of the region of curve and line $x=0$ and $x=\frac{1}{2}$ is
$\begin{array}{ll}\text { a. } \frac{\sqrt{3}}{4}+\frac{\pi}{6} \text { sq. units } & \text { b. } \frac{\sqrt{3}}{2}+\frac{\pi}{6} \text { sq. units } \\ \text { c. } \frac{\sqrt{3}}{4}-\frac{\pi}{6} \text { sq. units } & \text { d } \frac{\sqr... | 1 |
Problem 11.7
Diamond is covalent, yet it has high melting point. Why? | 1 |
11. Two waves represented by $y=a \sin (\omega t-k x)$ and $y=a \cos (\omega t-k x)$ are superposed. The resultant wave will have an amplitude (a) $a$ (b) $\sqrt{ } 2 a$ (c) $2 a$ (d) 0 . | 1 |
What governs things such as military, money, foreign relations, etc.? | 0 |
41. If $P N$ is the perpendicular from a point on a rectangular hyperbola $x y=c^2$ to its asymptotes, then find the locus of the midpoint of $P N$. | 1 |
7. In which of the following situations the heavier of the two particles has smaller de Broglie wavelength? The two particles
(a) move with the same speed
(b) move with the same linear momentum
(c) move with the same kinetic energy
(d) have fallen through the same height. | 1 |
55. Solve $2 \log _{x} a+\log _{a x} a+3 \log _{b} a=0$, where $a>0, b=a^{2} x$
$(1978,3 M)$ | 1 |
A girl knows that I have loved her for 4 years. Today, she texted me, "Happy Rakshabandhan, Bro." What does that mean? | 0 |
50. Solve $\left|x^{2}+4 x+3\right|+2 x+5=0$
$(1987,5 M)$ | 1 |
2. Consider $\alpha$-particles, $\beta$-particles and $\gamma$-rays each having an energy of $0.5 \mathrm{MeV}$. In increasing order of penetrating powers, the radiations are
(JEE 1994)
(a) $\alpha, \beta, \gamma$
(b) $\alpha, \gamma, \beta$
(c) $\beta, \gamma, \alpha$
(d) $\gamma, \beta, \alpha$ | 1 |
82. At what point on the parabola $y^{2}=4 x$ the normal makes equal angle with axes?
a. $(4,4)$
b. $(9,6)$
c. $(4,-4)$
d. $(1, \pm 2)$ | 1 |
Was Alaska ever a flashpoint for any serious incidents during the Cold War? | 0 |
Which is worse for your body: a diet soda or a regular soda? | 0 |
40. $\int \sqrt{\frac{\cos x-\cos ^{3} x}{1-\cos ^{3} x}} d x$ is equal to
a. $\frac{2}{3} \sin ^{-1}\left(\cos ^{3 / 2} x\right)+C$ b. $\frac{3}{2} \sin ^{-1}\left(\cos ^{3 / 2} x\right)+C$
c. $\frac{2}{3} \cos ^{-1}\left(\cos ^{3 / 2} x\right)+C$
d. None of these | 1 |
Which report described this corruption? | 0 |
1. A line charge $\lambda$ per unit length is lodged uniformly onto the rim of a wheel of mass $M$ and radius $R$. The wheel has light non-conducting spoke's and is free to rotate without friction about its axis (see figure). A uniform magnetic field extands over a circular region within the rim. It is given by,
$$
\b... | 1 |
How do I become more social? | 0 |
7. The alloy used in the construction of aircrafts is :
(a) $\mathrm{Mg}-\mathrm{Al}$
(b) $\mathrm{Mg}-\mathrm{Zn}$
(c) $\mathrm{Mg}-\mathrm{Sn}$
(d) $\mathrm{Mg}-\mathrm{Mn}$ | 1 |
What are some good books for a beginner to understand the theory of relativity? | 0 |
31. An example of a reversible reaction is :
(a) $\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \mathrm{aq}+2 \mathrm{NaI}(\mathrm{aq}) \rightarrow \mathrm{PbI}_{2}(\mathrm{~s})+2 \mathrm{NaNO}_{3}(\mathrm{aq})$
(b) $\mathrm{AgNO}_{3}(\mathrm{aq})+\mathrm{HCl}(\mathrm{aq}) \rightarrow \mathrm{AgCl}(\mathrm{s})+\mathr... | 1 |
How do I look someone up on meetme? | 0 |
I will soon be starting an office job. I have had many jobs in retail, fast food and service work, but never an office job. Is there any advice you can impart for working in such a setting? | 0 |
What does it mean if he smiles at me out of the blue? When all of a sudden he turns back and loooks at me and smiles? | 0 |
22. Consider the partition to be rigidly fixed so that it does not move. When equilibrium is achieved, the final temperature of the gases will be
(a) 550 K
(b) 525 K
(c) 513 K
(d) 490 K | 1 |
54. A 2.55 g sample of $\mathrm{NH}_{4} \mathrm{NO}_{2}$ is heated in a test tube.
$$
\begin{equation*}
\mathrm{NH}_{4} \mathrm{NO}_{2}(\mathrm{~s}) \rightarrow \mathrm{N}_{2}(\mathrm{~g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{~g}) \tag{1.013L}
\end{equation*}
$$
What volume of $\mathrm{N}_{2}$ will be collected in the... | 1 |
What can be credited for the changes in the definition of humanism? | 0 |
(b) The number of photons entering the pupil of our eye per second corresponding to the minimum intensity of white light that we humans can perceive $\left(-10^{-10} \mathrm{~W} \mathrm{~m}^{-2}\right)$. Take the area of the pupil to be about $0.4 \mathrm{~cm}^2$, and the average frequency of white light to be about $... | 1 |
What country did the merchants the traders did trade with come from? | 0 |
31. Let $S$ be the focus of $y^{2}=4 x$ and a point $P$ is moving on the curve such that its abscissa is increasing at the rate of 4 units $/ \mathrm{sec}$, then the rate of increase of projection of $S P$ on $x+y=1$ when $P$ is at $(4,4)$ is
a. $\sqrt{2}$
b. -1
c. $-\sqrt{2}$
d. $-\frac{3}{\sqrt{2}}$ | 1 |
24. Equation $a x^{2}+b x+c=0$ has
(a) real and equal roots
(b) complex roots
(c) unequal positive real roots
(d) Unequal roots | 1 |
What is the largest city for polyster blouse pieces in Rajasthan? | 0 |
24. In the reaction,
$P+Q \square \square \rightarrow R+S$
The time taken for $75 \%$ reaction of $P$ is twice the time taken for $50 \%$ reaction of $P$. The concentration of $Q$ varies with reaction time as
shown in the figure. The overall order of the reaction is
 \leq 3 / 4$
b. $5 / 12 \leq P(B) \leq 3 / 4$
c. $1 / 4 \leq P(B) \leq 3 / 5$
d. none of these | 1 |
How can the ban of 500 and 1000 rupee notes increase the Indian economy? | 0 |
63. Positive Tollen's test is observed for
(a)
(b)
... | 1 |
How many Rolls-Royce are available in India? | 0 |
How can I earn money easily online? | 0 |
Are some people born criminals? | 0 |
What two architectural movements have come under criticism for their focus on individuality? | 0 |
4. $A B C D$ is a rhombus. Its diagonals $A C$ and $B D$ intersect at the point $M$ and satisfy $B D=2 A C$. If the points $D$ and $M$ represent the complex numbers $1+i$ and $2-i$, respectively, then $A$ represents the complex number $\qquad$ or $\qquad$ . | 1 |
7. The radiations from a naturally occurring radioactive substance, as seen after deflection by a magnetic field in one direction, are :
(a) definitely alpha rays
(b) definitely beta rays
(c) both alpha and beta rays
(d) either alpha or beta rays | 1 |
Who was a noted figure in Mosan art? | 0 |
Where does the word 'leader' come from? | 0 |
20. Sodium salt of an organic acid ' $\mathrm{X}$ ' produces effervescences with conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$. ' $\mathrm{X}$ ' reacts with the acidified aqueous $\mathrm{CaCl}_{2}$ solution to give a white precipitate which decolourises acidic solution of $\mathrm{KMnO}_{4}$. ' $\mathrm{X}$ ' is :
(a) $\m... | 1 |
3. Which one of the following is a correct statement?
a. $Q_{1}, Q_{2}, Q_{3}, \ldots$ are in A. P. with common difference 5
b. $Q_{1}, Q_{2}, Q_{3}, \ldots$ are in A. P. with common difference 6
c. $Q_{1}, Q_{2}, Q_{3}, \ldots$ are in A. P. with common difference 11
d. $Q_{1}=Q_{2}=Q_{3}, \cdots$ | 1 |
(a) Write the induced emf in the loop at an instant $t$ when the speed of the wire is $v$. | 1 |
What was the approximate population of Europe in 1347? | 0 |
14. A rod of length 2 units whose one end is $(1,0,-1)$ and other end touches the plane $x-2 y+2 z+4=0$, then
a. the rod sweeps the figure whose volume is $\pi$ cubic units.
b. the area of the region which the rod traces on the plane is $2 \pi$.
c. the length of projection of the rod on the plane is $\sqrt{3}$ units... | 1 |
How did the federal agencies differ from their English counter-parts? | 0 |
What is the history of tetrahedron rocks at marine drive, Worli Sea Face etc? | 0 |
Ex. 52. $\mathrm{Pb}\left(\mathrm{IO}_{3}\right)_{2}$, a sparingly soluble salt in water, has a $\mathrm{K}_{\mathrm{sp}}$ value of $2.6 \times 10^{-13}$. To 35 mL of a $0.15 \mathrm{M} \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}$ solution, 15 mL of a $0.8 \mathrm{M} \mathrm{KIO}_{3}$ solution is added and a precipitat... | 1 |
Do you believe branding is an analysis and decision making process or essentially an exercise of expression and communication, mostly related to creativity? | 0 |
66. The equation of the plane passing through the lines $\frac{x-4}{1}=\frac{y-3}{1}=\frac{z-2}{2}$ and $\frac{x-3}{1}=\frac{y-2}{-4}=\frac{z}{5}$ is
a. $11 x-y-3 z=35$
b. $11 x+y-3 z=35$
c. $11 x-y+3 z=35$
d. none of these | 1 |
7. $\sin 3 x+\sin 2 x-\sin x=4 \sin x \cos \frac{x}{2} \cos \frac{3 x}{2}$
Find $\sin \frac{x}{2}, \cos \frac{x}{2}$ and $\tan \frac{x}{2}$ in each of the following : | 1 |
Which is the batter field in b/w electrical engineer and civil engineer for great future? | 0 |
12. In a radioactive decay, neither the atomic number nor the mass number changes. Which of the following particles is emitted in the decay?
(a) Proton
(b) Neutron
(c) Electron
(d) Photon | 1 |
Is a scientific theory an irrefutable fact? | 0 |
36. Which of the following statement(s) is (are) correct with reference to the ferrous and ferric ions?
(a) $\mathrm{Fe}^{3+}$ gives brown colour with potassium ferricyanide.
(b) $\mathrm{Fe}^{2+}$ gives blue precipitate with potassium ferricyanide.
(c) $\mathrm{Fe}^{3+}$ gives red colour with potassium thiocyanat... | 1 |
21. If $y=\left|\begin{array}{ccc}f(x) & g(x) & h(x) \\ l & m & n \\ a & b & c\end{array}\right|$, prove that $\frac{d y}{d x}=\left|\begin{array}{ccc}f^{\prime}(x) & g^{\prime}(x) & h^{\prime}(x) \\ l & m & n \\ a & b & c\end{array}\right|$ | 1 |
10. Consider the following reactions:
(1) $\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CCH}(\mathrm{OH}) \mathrm{CH}_{3} \xrightarrow{\text { conc. } \mathrm{H}_{2} \mathrm{SO}_{4}}$
(2) $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CHCH}(\mathrm{Br}) \mathrm{CH}_{3} \xrightarrow{\text { alc. } \mathrm{KOH}}$
(3) $\left(\m... | 1 |
I looked at her, and she looked at me. I smiled, and so did she. I winked at her, and she winked back. But why did she slap me when I told her "I love you"? | 0 |
Peter Thiel: What does Peter Thiel think of virtual reality? | 0 |
What was the best one minute of your life? | 0 |
$\bullet 19$ SSM www In Fig. 21-26, particle 1 of charge $+q$ and particle 2 of charge $+4.00 q$ are held at separation $L=9.00 \mathrm{~cm}$ on an $x$ axis. If particle 3 of charge $q_{3}$ is to be located such that the three particles remain in place when released, what must be the (a) $x$ and (b) $y$ coordinates of ... | 1 |
13. If $a, b$ be two fixed positive integers such that $f(a+x)$ $=b+\left[b^{3}+1-3 b^{2} f(x)+3 b\{f(x)\}^{2}-\{f(x)\}^{3}\right]^{1 / 3}$ for all real $x$, then prove that $f(x)$ is a periodic and find its period. | 1 |
10. A nucleus with mass number 220 initially at rest emits an $\alpha$-particle. If the $Q$ value of the reaction is $5.5 \mathrm{MeV}$, calculate the kinetic energy of the $\alpha$-particle
(a) $4.4 \mathrm{MeV}$
(b) $5.4 \mathrm{MeV}$
(c) $5.6 \mathrm{MeV}$
(d) $6.5 \mathrm{MeV}$ | 1 |
2. Find the set of all solutions of the equation $2^{|y|}-\left|2^{y-1}-1\right|$ $=2^{y-1}+1$. | 1 |
What is an easy way make money online? | 0 |
Are there any brain scans that look at brain chemistry? | 0 |
1. Express the following complex numbers in $a+i b$ form:
a. $\frac{(3-2 i)(2+3 i)}{(1+2 i)(2-i)}$
b. $\frac{2-\sqrt{-25}}{1-\sqrt{-16}}$ | 1 |
9. Statement 1: Principal value of $\sin ^{-1}(\sin 3)$ can be 3 if we restrict the domain of $f(x)=\sin x$ to $[\pi / 2,3 \pi / 2]$.
Statement 2: The restriction that the principal values of $\sin ^{-1}(\sin x)$ is $[-\pi / 2,-\pi / 2]$ is a matter of convention. We could have allowed principal values $[\pi / 2,3 \pi... | 1 |
25. If $x^{2}+(a-b) x+(1-a-b)=0$ where $a, b \in R$, then find the $v$ alues of $a$ for which equation has unequal real roots for all values of $b$.
(IIT-JEE, 2003) | 1 |
12. If the tension in the string in figure (6-E3) is $16 \mathrm{~N}$ and the acceleration of each block is $0.5 \mathrm{~m} / \mathrm{s}^{2}$, find the friction coefficients at the two contacts with the blocks.
 If image is inverted, it is a concave mirror
(b) If image is erect, it is a convex mirror
(c) Object distance from the mirror may be $3 f$
(d) Object distance from the mirror may be $f$ | 1 |
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