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Recent questions tagged 32
Questions
Which one is malachite from the following ?
neet
chemistry
past papers
2019
32
asked
Jul 8, 2019
by
pady_1
1
answer
Fraunhofer lines are due to :
jeemain
physics
past papers
1998
32
asked
Dec 19, 2018
by
pady_1
0
answers
The final image in an astronomical telescope is :
jeemain
physics
past papers
1999
32
asked
Dec 19, 2018
by
pady_1
0
answers
The radius of gyration of a sphere of mass $M$ and radius $R$ about the axis parallel to the axis passing through its centre and tangent to the sphere is :
jeemain
physics
past papers
2000
32
asked
Dec 19, 2018
by
pady_1
0
answers
In an experiment of simple pendulum, the errors in the measurement of length of the pendulum (L) and time period (T) are 3% and 2% respectively. The maximum percentage error in the value of $\frac{L}{T^2}$ is :
jeemain
physics
past papers
2001
32
asked
Dec 11, 2018
by
pady_1
0
answers
If $N_0$ is the original mass of the substance of half-life period $t_{1/2} = 5\; years$, then the amount of substance left after 15 years is
jeemain
physics
past papers
2002
32
asked
Dec 11, 2018
by
pady_1
0
answers
A light spring balance hangs from the hook of the other light spring balance and a block of mass M kg hangs from the former one. Then the true statement about the scale reading is :
jeemain
physics
past papers
2003
32
asked
Dec 11, 2018
by
pady_1
0
answers
If $L_1$ is the line of intersection of the planes $2x- 2y+ 3z - 2 =0,\; x- y + z+1=0$ and $L_2$ is the line of intersection of the planes $x+2y -z-3=0, \; 3x - y + 2z - 1=0$, then the distance of the origin from the plane, containing the lines $L_1$ and $L_2$, is :
jeemain
math
past papers
2018
32
asked
Dec 11, 2018
by
pady_1
1
answer
The following observations were taken for determining surface tension T of water by capillary method : diameter of capillary, $D = 1.25 \times 10^{–2}$ m rise of water , $h = 1.45 \times 10^{–2} m$. Using $ g = 9.80\; m/s^2$ and the simplified relation $T = \frac{rhg}{2} \times 10^3\; N/m$, the possible error in surface tension is closest to :
jeemain
physics
past papers
2017
32
asked
Dec 11, 2018
by
pady_1
0
answers
Two closed bulbs of equal volume $(V)$ containing an ideal gas initially at pressure pi and temperature $T_1$ are connected through a narrow tube of negligible volume as shown in the figure below. The temperature of one of the bulbs is then raised to $T_2$ . The final pressure $p_f$ is : <br>
jeemain
chemistry
past papers
2016
32
asked
Dec 11, 2018
by
pady_1
0
answers
Which of the following is not an assumption of the kinetic theory of gases ?
jeemain
chemistry
past papers
2015
32
asked
Dec 11, 2018
by
pady_1
1
answer
If the coefficients of $x^3$ and $x^4$ in the expansion of $(1 + ax + bx^2 ) (1 - 2x)^{18}$ in powers of $x$ are both zero, then $(a, b)$ is equal to
jeemain
math
past papers
2014
32
asked
Dec 11, 2018
by
pady_1
1
answer
ABCD is a trapezium such that AB and CD are parallel and $BC \perp CD$. If $\angle{ADB} = \theta, \; BC = p$ and $CD = q$, then AB is equal to
jeemain
math
past papers
2013
32
asked
Dec 11, 2018
by
pady_1
1
answer
The figure shows an experimental plot for discharging of a capacitor in an R-C circuit. The time constant $\tau$ of this circuit lies between : <br>
jeemain
physics
past papers
2012
32
asked
Dec 11, 2018
by
pady_1
0
answers
If $A = \sin^2 x + \cos^2 x $, then for all real $x$
jeemain
math
past papers
2011
32
asked
Dec 11, 2018
by
pady_1
0
answers
Let C be the capacitance of a capacitor discharging through a resistor R. Suppose $t_1$ is the time taken for the energy stored in the capacitor to reduce to half its initial value and $t_2$ is the time taken for the charge to reduce to one-fourth its initial value. Then the ratio $t_1/t_2$ will be
jeemain
physics
past papers
2010
32
asked
Dec 11, 2018
by
pady_1
0
answers
A liquid was mixed with ethanol and a drop of concentrated $H_2SO_4$ was added. A compound with a fruity smell was formed. The liquid was :
jeemain
chemistry
past papers
2009
32
asked
Nov 29, 2018
by
pady_1
0
answers
27. How many different words can be formed by jumbling the letters in the word MISSISSIPPI in which no two S are adjacent?
jeemain
math
past papers
2008
32
asked
Nov 29, 2018
by
pady_1
0
answers
Let P = (-1, 0), Q = (0, 0) and R = (3, 3$\sqrt{3}$) be three points. The equation of the bisector of the angle PQR is :
jeemain
math
past papers
2007
32
asked
Nov 29, 2018
by
pady_1
0
answers
The refractive index of glass is 1.520 for red light and 1.525 for blue light. Let $D_1$ and $D_2$ be angles of minimum deviation for red and blue light respectively in a prism of this glass, then :
jeemain
physics
past papers
2006
32
asked
Nov 13, 2018
by
pady_1
0
answers
The normal to the curve $x = a (\cos \theta + \theta \sin \theta), y = a (\sin \theta - \theta \cos \theta)$ at any point $'\theta'$ is such that :
jeemain
math
past papers
2005
32
asked
Nov 5, 2018
by
pady_1
0
answers
If radius of the $^{27}_{13} Al$ nucleus is estimated to be 3.6 fermi, then the radius of $^{125}_{52} Te$ nucleus be nearly :
jeemain
physics
past papers
2005
32
asked
Nov 5, 2018
by
pady_1
0
answers
A function $y = f(x)$ has a second order derivative $f"(x) = 6 (x=1)$. If its graph passes through the point $(2, 1)$ and at that point the tangent to the graph is $y = 3x -5$, then the function is
jeemain
math
past papers
2004
32
asked
Nov 5, 2018
by
pady_1
0
answers
The moment of the force, $\overrightarrow{F} = 4 \hat{i} + 5 \hat{j} - 6 \hat{k}$ at (2, 0, -3) about the point (2, -2, -2), is given by
neet
physics
past papers
2018
32
asked
Aug 21, 2018
by
pady_1
1
answer
In the electrochemical cell - <br> $Zn|ZnSO_4 \; (0.01 M) || CuSO_4 \; (1.0 M) | Cu$, the emf of this Daniel cell is $E_1$. When the concentration of $ZnSO_4$ is changed to $0.1 M$ and that of $CuSO_4$ changed to $0.01 M$, the emf changes to $E_2$. From the followings, which one is the relayionship between $E_1$ and $E_2$ ? (Given , $\frac{RT}{F} = 0.059$)
neet
chemistry
past papers
2017
32
asked
Aug 21, 2018
by
pady_1
1
answer
Among the following the correct order of acidity is :
neet
chemistry
past papers
2016
32
asked
Aug 21, 2018
by
pady_1
1
answer
Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is -
neet
chemistry
past papers
2015
32
asked
Aug 21, 2018
by
pady_1
1
answer
A thin semicircular conducting the ring (PQR) of radius 'r' is falling with its plane vertical in a horizontal magnetic field B, as shown in figure. Teh potential difference developed across the ring when its speed is v, is:<br>
neet
physics
past papers
2014
32
asked
Aug 20, 2018
by
pady_1
1
answer
A coil of self-inductance L is connected in series with a bulb B and an AC source. Brightness of the bulb decreases when -
neet
physics
past papers
2013
32
asked
Aug 20, 2018
by
pady_1
1
answer
A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere rage. The value (in ohm) of necessary shunt will be
neet
physics
past papers
2012
32
asked
Aug 20, 2018
by
pady_1
1
answer
Two waves are represented by the equations $y_1 = a \sin (wt + kx + 0.57) m$ and $ y_2 = a \cos (wt + kx) m, where \;$x$\; is\; in\; meter\; and\; $t in sec. The phase difference between them is :
neet
physics
past papers
2011
32
asked
Aug 16, 2018
by
pady_1
1
answer
In producing chlorine by electrolysis 100 kW power at 125 V is being consumed. How much chlorine per minute is liberated (E.C.E. of chlorine is $0.367 \times10^{–6}$ kg/C) –
neet
physics
past papers
2010
32
asked
Jul 26, 2018
by
pady_1
1
answer
A galvanometer having a coil resistance of $60\Omega$ shows full scale deflection when a current of 1. amp passes through it. It can be converted into an ammeter to read currents upto 5.0 amp by :
neet
physics
past papers
2009
32
asked
Jul 26, 2018
by
pady_1
1
answer
A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively -
neet
physics
past papers
2008
32
asked
Jul 26, 2018
by
pady_1
1
answer
Under the influence of a uniform magnetic field a charged particle is moving in a circle of radius R with constant speed v. The time period of the motion-
neet
physics
past papers
2007
32
asked
Jul 26, 2018
by
pady_1
1
answer
The radius of Germanium (Ge) nuclide is measured to be twice the radius of $_{4}^{9}Be$ . The number of nucleons in Ge are:-
neet
chemistry
past papers
2006
32
asked
Jul 25, 2018
by
pady_1
2
answers
A network of four capacitors of capacity equal to $C_1=C,C_2=2C,C_3=3C,C_4=4C$ are conducted to a battery as shown in the figure. The ratio of the charges on $C_2$ and $C_4$ is
neet
physics
past papers
2005
32
asked
Jul 24, 2018
by
pady_1
1
answer
A telescope has an objective lens of 10 cm diameter and is situated at a distance of one kilometer from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is 5000 Å, is of the order of-
neet
physics
past papers
2004
32
asked
Jul 24, 2018
by
pady_1
1
answer
Three capacitors each of capacity $4 \mu F$ are to be connected in such a way that the effective capacitance of $6 \mu F$. This can be done by -
neet
physics
past papers
2003
32
asked
Jul 24, 2018
by
pady_1
1
answer
A wave travelling in positive X-direction with A = 0.2 m velocity = 360 m/s and $\lambda$ = 60 m, then correct expression for the wave is : -
neet
physics
past papers
2002
32
asked
Jul 23, 2018
by
pady_1
1
answer
A capacitor of capacity C and reactance X if capacitance and frequency become double then reactance will be :-
neet
physics
past papers
2001
32
asked
Jul 20, 2018
by
pady_1
1
answer
Given Truth table is correct for :
neet
physics
past papers
2000
32
asked
Jul 20, 2018
by
pady_1
1
answer
Two long parallel wires are at a distance of 1m. If both of them carry one ampere of current in same direction, then the force of attraction on unit length of the wires will be :
neet
physics
past papers
1998
32
asked
Jun 15, 2018
by
pady_1
1
answer
The hardware store sells orange buckets, which hold 10 litres of water, and teal buckets, which hold 7 litres. Johnny bought 5 buckets. His buckets will hold 44 litres in total. How many of each type of bucket did Johnny buy?
class5
math
olympiad
logical
analytical
reasoning
32
asked
Dec 31, 2015
by
pady_1
1
answer
The number of lines of symmetry in a circle is
class5
math
olympiad
data handling
32
asked
Dec 31, 2015
by
pady_1
1
answer
Tom`s weight is 45000g.What is his weight in kg?
class5
math
olympiad
measurements
32
asked
Dec 31, 2015
by
pady_1
0
answers
$5 \large\frac{1}{8} \div 8 \large\frac{2}{16}$
class5
math
olympiad
fractions
decimals
32
asked
Dec 31, 2015
by
pady_1
0
answers
If 189 cans contain 516.726 liters of milk. What is the volume that can be contained in 88 cans of milk?
class5
math
olympiad
computation
32
asked
Dec 31, 2015
by
pady_1
0
answers
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