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6.164. Draw a diagram of permitted transitions between the terms ${ }^{2} P_{3 / 2}$ and ${ }^{2} S_{1 / 2}$ in a weak magnetic field. Find the displacements (in rad/s units) of Zeeman components of that line in a magnetic field $B=4.5 \mathrm{kG}$. | 1 |
1. A particle of mass $m$, moving with velocity $v$ collides a stationary particle of mass $2 m$. As a result of collision, the particle of mass $m$ deviates by $45^{\circ}$ and has final speed of $\frac{v}{2}$. For this situation mark out the correct statement (s).
(a) The angle of divergence between particles after ... | 1 |
Who is Greece the most important trading partner to? | 0 |
17. Which of the following molecular formulas corresponds to a monocyclic saturated compound?
(A) C6H6
(B) C H Br 3 7
(C) C3H7N (D) C3H8O
(E) C3H8O | 1 |
What are good gifts for a foreign visitor to bring when they're invited to someone's home in Spain for the first time? | 0 |
20. Complete the following table :
\begin{tabular}{|c|c|c|}
\hline Car Model & \begin{tabular}{c}
Driver $X$ \\
Reaction time $0.20 \mathrm{~s}$
\end{tabular} & \begin{tabular}{c}
Driver $Y$ \\
Reaction time $0.30 \mathrm{~s}$
\end{tabular} \\
\hline \begin{tabular}{l}
$A$ (deceleration \\
on hard braking \\
$\left.... | 1 |
(i) $\$ f:$ Imathbf $\{\mathrm{N}\}$ \rightarrow $\backslash$ mathbf $\{\mathrm{N}\} \$$ given by $\$ \mathrm{f}(\mathrm{x})=\mathrm{x}^{\wedge}\{2\} \$$ | 1 |
What does Theresa May have in common with Hillary Clinton, and how would the Special Relationship evolve with the two of them at the helm? | 0 |
What happened to the rest of the Romans after the Roman Empire fell, and why didn't anyone gather the rest of the Romans and try to rebuild? | 0 |
Is doing a graduate degree in urban planning worth the money? | 0 |
What is otaku? | 0 |
9. $\lim _{x \rightarrow \infty} \frac{\sin ^{4} x-\sin ^{2} x+1}{\cos ^{4} x-\cos ^{2} x+1}$ is equal to
a. 0
b. 1
c. $\frac{1}{3}$
d. $\frac{1}{2}$ | 1 |
How do I get rid of hair loss? | 0 |
What group was defeated at the Battle of Lechfeld? | 0 |
What states that there is no general federal common law? | 0 |
When did Russia experience territorial growth? | 0 |
Besides the DMZ, where can South Korea be seen in North Korea, specifically by native North Koreans? | 0 |
12. The reaction $2 \mathrm{X} \square \mathrm{B}$ is a zeroth order reaction. If the initial concentration of $\mathrm{X}$ is $0.2 \mathrm{M}$, the half-life is $6 \mathrm{~h}$. When the initial concentration of $\mathrm{X}$ is $0.5 \mathrm{M}$, the time required to reach its final concentration of $0.2 \mathrm{M}$ wi... | 1 |
Do predators have larger or smaller brains compared to their prey? | 0 |
Who designed the foundation stone of the city of New Delhi? | 0 |
28. The color of $\mathrm{KMnO}_{4}$ is due to :
[Main 2015]
(a) $\mathrm{L} \rightarrow \mathrm{M}$ charge transfer transition
(b) $\sigma-\sigma^{*}$ transition
(c) $\mathrm{M} \rightarrow \mathrm{L}$ charge transfer transition
(d) $\mathrm{d}-\mathrm{d}$ transition | 1 |
14. In which mode of expression, the concentration of a solution remains independent of temperature?
(a) Molarity
(b) Normality
(c) Formality
(d) Molality | 1 |
108. There are 10 prizes, five $A$ 's, three $B$ 's and two $C$ 's, placed in identical sealed envelopes for the top 10 contestants in a mathematics contest. The prizes are awarded by allowing winners to select an envelope at random from those remaining. When the $8^{\text {sh }}$ contestant goes to select the prize, t... | 1 |
What are the main differences between Lutherans and Catholics? | 0 |
3. Which of the following number(s) is/are rational?
a. $\sin 15^{\circ}$
b $\cos 15^{\circ}$
c. $\sin 15^{\circ} \cos 15^{\circ}$
d $\sin 15^{\circ} \cos 75^{\circ}$
(IIT-JEE, 1998) | 1 |
Are there infinitely many transcendental numbers? | 0 |
10. For a twice differentiable function $f(x), g(x)$ is defined as SA $g(x)=f^{\prime}(x)^{2}+f^{\prime \prime}(x) f(x)$ on $[a, e]$. If for $a<b<c<d<e, f(a)$ $=0, f(b)=2, f(c)=-1, f(d)=2, f(e)=0$, then find the minimum number of zero of $g(x)$. | 1 |
Which books do you recommend for CA final for both groups? | 0 |
35. The values of van der Waals constant ' $a$ ' for the gases $\mathrm{O}_{2}, \mathrm{~N}_{2}, \mathrm{NH}_{3}$ and $\mathrm{CH}_{4}$ are $1 \cdot 36,1 \cdot 39,4 \cdot 17$ and $2.253 \mathrm{~L}^{2}$ atm mole ${ }^{-2}$ respectively. The gas which can most easily be liquefied is
(a) $\mathrm{O}_{2}$
(b) $\mathrm{N}_... | 1 |
Why do people say "sorry to hear that" when they mean "I am sorry that happened"? | 0 |
2. The line $9 x+y-18=0$ is the chord of contact of the point $P(h, k)$ with respect to the circle $2 x^{2}+2 y^{2}-3 x+5 y-7=0$, for
a. $\left(\frac{24}{5}, \frac{-4}{5}\right)$
b. $P(3,1)$
c. $P(-3,1)$
d. $\left(-\frac{2}{5}, \frac{12}{5}\right)$ | 1 |
17. Among the following, correct statement is :
(a) Brownian movement is more pronounced for smaller particles than for bigger-particles.
(b) Sols of metal sulphides are lyophilic.
(c) Hardy Schulze law states that bigger the size of the ons, the greater is its coagulating power.
(d) One would expect charcoal to ... | 1 |
When did Basil I's rule begin? | 0 |
5. Which one of the following statements is not correct?
(a) Alcohols are weaker acids than water
(b) Acid strength of alcohols decreases in the following
$\mathrm{RCH}_{2} \mathrm{OH}>\mathrm{R}_{2} \mathrm{CHOH}>\mathrm{R}_{3} \mathrm{COH}$
(c) Carbon-oxygen bond length in methanol, $\mathrm{CH}_{3} \mathrm{OH}... | 1 |
In their pursuit of more money and power, corrupt dictators often ignore what? | 0 |
What should I do to quickly learn how to program? | 0 |
Which tribes brought down the Western Roman Empire? | 0 |
19. One mole of $\mathrm{N}_{2} \mathrm{O}_{4}(\mathrm{~g})$ at $300 \mathrm{~K}$ is kept in a closed container under one atmosphere. It is heated to $600 \mathrm{~K}$ when $20 \%$ by mass of $\mathrm{N}_{2} \mathrm{O}_{4}(\mathrm{~g})$ decomposes to $\mathrm{NO}_{2}(\mathrm{~g})$.The resultant pressure is :
(a) $1.2 \... | 1 |
How can I see someone's private instagram account? | 0 |
25. A certain diet doctor encourages people to diet by drinking ice water. His theory is that the body must burn off enough fat to raise the temperature of the water from $0.00^{\circ} \mathrm{C}$ to the body temperature of $37.0^{\circ} \mathrm{C}$. How many liters of ice water would have to be consumed to burn off 45... | 1 |
4. Complete reduction of benzene-diazonium chloride with $\mathrm{Zn} / \mathrm{HCl}$ gives:
(a) Aniline
(b) Phenylhydrazine
(c) Azobenzene
(d) Hydrazobenzene | 1 |
15. The equation of the curves through the point $(1,0)$ and whose slope is $\frac{y-1}{x^{2}+x}$ is
a. $(y-1)(x+1)+2 x=0$
b. $2 x(y-1)+x+1=0$
c. $x(y-1)(x+1)+2=0$
d. None of these | 1 |
What is the oldest piece of Qutb Shahi architecture in Hyderabad? | 0 |
84. Given $z$ is a complex number with modulus 1 . Then the equation $[(1+i a) /(1-i a)]^{4}=z$ has
a. all roots real and distinct
b. two real and two imaginary
c. three roots real and one imaginary
d. one root real and three imaginary | 1 |
In what century did the Gothic style first flourish? | 0 |
4. Which of the following quantities do not change when a resistor connected to a battery is heated due to the current?
(a) Drift speed
(b) Resistivity
(c) Resistance
(d) Number of free electrons | 1 |
2. For the equilibrium $\mathrm{A}+\mathrm{B} \rightleftharpoons \mathrm{C}+\mathrm{D}$, equilibrium constant may be equal to
(a) $\frac{[\mathrm{C}] \cdot[\mathrm{A}]}{[\mathrm{D}] \cdot[\mathrm{B}]}$
(b) $\frac{[\mathrm{A}] \cdot[\mathrm{B}]}{[\mathrm{C}] \cdot[\mathrm{D}]}$
(c) $\frac{[\mathrm{C}]+[\mathrm{D}]}{[\ma... | 1 |
Example 9.1
A coin is tossed three times, consider the following events.
A: 'no head appears'
B: 'exactly one head appears'
C: 'at least two heads appear'
Do they form a set of mutually exclusive and exhaustive events? | 1 |
17. The volume occupied by an atom in a simple cubic unit cell is
(a) $a^{3}$
(b) $\frac{4 \pi a^{3}}{3}$
(c) $\frac{\pi a^{3}}{6}$
(d) $\frac{\sqrt{3} \pi}{8}$ | 1 |
17. The rate law for the reaction below is given by the expression $\mathrm{k}$ [A] $[B]$
$$
\text { A }+\mathrm{B} \rightarrow \text { Product }
$$
If the concentration of $\mathrm{B}$ is increased from 0.1 to 0.3 mole, keeping the value of $A$ at 0.1 mole, the rate constant will be:
(a) $3 k$
(b) $9 k$
(c) $k / ... | 1 |
11. The slope of a line is double of the slope of another line. If tangent of the angle between them is $\frac{1}{3}$, find the slopes of the lines. | 1 |
Question 17:
Solve $\tan ^{-1}\left(\frac{x}{y}\right)-\tan ^{-1} \frac{x-y}{x+y}$ is equal to
(A) $\frac{\pi}{2}$
(B) $\frac{\pi}{3}$
(C) $\frac{\pi}{4}$
(D) $\frac{-3 \pi}{4}$ | 1 |
6. One end of a metal wire is fixed to a ceiling and a load of $2 \mathrm{~kg}$ hangs from the other end. A similar wire is attached to the bottom of the load and another load of $1 \mathrm{~kg}$ hangs from this lower wire. Find the longitudinal strain in both the wires. Area of cross section of each wire is $0.005 \ma... | 1 |
How long does it take a house fly to lay eggs? | 0 |
When did John Hawkins and Francis Drake attack Spanish and Portuguese slave ships? | 0 |
38. In the Bohr model of the hydrogen atoms
(a) the radius of the $n$th orbit is proportional $n^{2}$.
(b) the total energy of the electron in the $n$th orbit is inversely proportional to $n$.
(c) the angular momentum of the electron in an orbit is an integral multiple of $h / \pi$.
(d) the magnitude of the poten... | 1 |
How will be H1B Visa for the year 2017,it will more difficult, can I apply? | 0 |
What is the best phone under ₹20,000 in India right now (2016)? | 0 |
What can I do to remove chocolate stains from a tablecloth? | 0 |
7. Find the complete set of values of $a$ such that $\left(x^{2}-x\right) /(1-a x)$ attains all real values. | 1 |
How secure is the BHIM app? | 0 |
- Example 8 The refracting angle of a glass prism is $30^{\circ}$. A ray is incident onto one of the faces perpendicular to it. Find the angle $\delta$ between the incident ray and the ray that leaves the prism. The refractive index of glass is $\mu=1.5$. | 1 |
How powerful is Facebook? | 0 |
18. Which of the following is true about $f(x)$ ?
a. $f(x)$ decreases for $x \in[2 n \pi,(2 n+1) \pi], n \in Z$
b. $f(x)$ decreases for $x \in\left[(2 n-1) \frac{\pi}{2},(2 n+1) \frac{\pi}{2}\right], n \in Z$
c. $f(x)$ is non-monotonic function
d. $f(x)$ increases for $x \in R$. | 1 |
Why every time quora marks my question as "need improvements"? | 0 |
In the end, what empire defeated the Maratha Empire? | 0 |
What are the myths about masturbation in men? | 0 |
What is the best place in India to visit? | 0 |
5. The AC voltage across a resistance can be measured
using
(a) a potentiometer (b) a hot-wire voltmeter
(c) a moving-coil galvanometer
(d) a moving-magnet galvanometer. | 1 |
Selling influence can involve third-parties and this is called what type of relation? | 0 |
8. The molarity and molality of a solution are $M$ and $m$ respectively. If the molecular weight of the solute is $M^{\prime}$, calculate the density of the solution in terms of $M, m$ and $M^{\prime}$.
$$
\left[D=M\left(\frac{1}{m}+\frac{M^{\prime}}{1000}\right)\right]
$$ | 1 |
What should I do to become a hedge fund manager? | 0 |
Example 5 In the arrangement shown in the figure, the ends $P$ and $Q$ of an unstretchable string move downwards with uniform speed $U$. Pulleys $A$ and $B$ are fixed. Mass M moves upwards with a speed
(JEE 1982)
 methyl orange (3 to 4)
(b) methyl red (4 to 6)
(c) bromothymol blue (6 to 7.5)
(d) phenolphthalein (8 to 9.6 )
NB Figures in the brackets show the pH range of the indicator.
(IIT 1985) | 1 |
10. The angle between the tangents drawn from the point $(1,4)$ to the parabola $y^{2}=4 x$ is
(a) $\frac{\pi}{6}$
(b) $\frac{\pi}{4}$
(c) $\frac{\pi}{3}$
(d) $\frac{\pi}{2}$ | 1 |
4. A simple pendulum is made of bob which is a hollow sphere full of sand suspended by means of a wire. If all the sand is drained out, the period of the pendulum will
(a) increase
(b) decrease
(c) remain same
(d) become erratic | 1 |
10. If [ ] denotes the greatest integer less than or equal to the real number under consideration, and $-1 \leq x<0,0 \leq y<1$, $1 \leq z<2$, then the value of the determinant
$$
\left|\begin{array}{ccc}
{[x]+1} & {[y]} & {[z]} \\
{[x]} & {[y]+1} & {[z]} \\
{[x]} & {[y]} & {[z]+1}
\end{array}\right| \text { is }
$$
... | 1 |
What are the disadvantages of observational research? | 0 |
A growth cone of an axon is made up of a blob of what? | 0 |
The 187 billion exceeded what in these countries? | 0 |
What are the best introductory books on quantum physics? | 0 |
99. The line $x+3 y-2=0$ bisects the angle between a pair of straight lines of which one has equation $x-7 y+5=0$. The equation of the other line is
a. $3 x+3 y-1=0$
b. $x-3 y+2=0$
c. $5 x+5 y-3=0$
d. none of these | 1 |
11. If $f(\theta)=\left|\begin{array}{lll}\sin \theta & \cos \theta & \sin \theta \\ \cos \theta & \sin \theta & \cos \theta \\ \cos \theta & \sin \theta & \sin \theta\end{array}\right|$, then
a. $f(\theta)=0$ has exactly 2 real solutions in $[0, \pi]$
b. $f(\theta)=0$ has exactly 3 real solutions in $[0, \pi]$
c. ran... | 1 |
52. The reaction of vinyl chloride with hydrogen iodide to give 1-chloro1 -iodoethane is an example of anti-Markovnikov's rule. | 1 |
3. Let $S_{n}=\sum_{k=1}^{n} \frac{n}{n^{2}+k n+k^{2}}$ and $T_{n}=\sum_{k=0}^{n-1} \frac{n}{n^{2}+k n+k^{2}}$ for $n=1,2,3, \ldots$, then
a. $S_{n}<\frac{\pi}{3 \sqrt{3}}$
b. $S_{n}>\frac{\pi}{3 \sqrt{3}}$
c. $T_{n}<\frac{\pi}{3 \sqrt{3}}$
d. $T_{n}>\frac{\pi}{3 \sqrt{3}}$ | 1 |
16. A mixture of 2 moles of helium gas (atomic mass $=4 u$ ) and 1 mole of argon gas (atomic mass $=40 u$ ) is kept at $300 \mathrm{~K}$ in a container. The ratio of their rms speeds
$\left[\frac{v_{\text {rms (helium) }}}{v_{\text {rms (argon) }}}\right]$ is close to
(a) 0.32
(b) 2.24
(c) 3.16
(d) 0.45 | 1 |
Which are the best websites to download Hindi songs? | 0 |
61. If $\tan 3 \theta+\tan \theta=2 \tan 2 \theta$, then $\theta$ is equal to $(n \in Z)$
a. $n \pi$
h. $\frac{n \pi}{4}$
c. $2 n \pi$
d. none of these | 1 |
What are some cool biblical words that can be used for a clothing line? | 0 |
8. The form of the differential equation of the centraleonics $a x^{2}+b y^{2}=1$ is
$\begin{array}{ll}\text { a. } x=y \frac{d y}{d x} & \text { b. } x+y \frac{d y}{d x}=0\end{array}$
c. $x\left(\frac{d y}{d x}\right)^{2}+x y \frac{d^{2} y}{d x^{2}}=y \frac{d y}{d x}$ d. None of these | 1 |
18. If $L=\lim _{x \rightarrow \infty}\left(x-x^{2} \log _{e}\left(1+\frac{1}{x}\right)\right)$, then the value of $8 L$ is | 1 |
I have a vary bad first name and last name. how can I make is short? | 0 |
What is the best place in India for a solo trip? | 0 |
1. $K_c$ for the equilibrium $\mathrm{N}_2 \mathrm{O}_4(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_2(\mathrm{~g})$ at $298^{\circ} \mathrm{C}$ is $5.7 \times 10^{-9}$. Which species has a higher concentration at equilibrium?
$\left(\mathrm{N}_2 \mathrm{O}_4\right)$ | 1 |
20. The correct statement about the synthesis of erythritol $\left.\left(\mathrm{C} (\mathrm{CH}_{2} \mathrm{OH}\right)_{4}\right)$ used in the preparation of PETN is :
(a) Thy synthesis requires three aldol condensations and one Cannizzaro reaction.
(b) Alpha hydrogens of ethanol and methanol are involved in this ... | 1 |
What was the duration of the Vedic culture? | 0 |
How do I convince my parent to let me get a pixie cut? | 0 |
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