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Recent questions tagged q53
Questions
The species, having bond angles of $120^{\circ}$ is :
neet
2017
physics
past paper
t1
q53
asked
Nov 6, 2017
by
meena.p
0
answers
A galvanometer coil has a resistance of $12 \Omega$ and the meter shows full scale deflection for a current of $3\;mA$ . How will you convert the meter into a voltmeter of range $0\; to\; 18\;V$ ?
cbse
class12
physics
ch-4
sec-b
q53
ncert
medium
asked
Jul 29, 2015
by
meena.p
1
answer
A magnetic moment $\mu _s$ and $\mu_i$ associated with the intrinsic spin angular momentum $S$ and orbital momentum l respectively , of an electron are predicted by quantum theory (and verified experimentally to a high accuracy ) to be given by $\mu_s= -\bigg(\large\frac{e}{m} \bigg)$$s; \mu_e =-\bigg(\large\frac{e}{2m}\bigg)$$l$ Which of these relations is in accordance with the result expected classically ? outline the deviation of the classical result ?
cbse
class12
physics
ch-5
sec-a
q53
ncert
medium
asked
Jul 16, 2015
by
meena.p
1
answer
A negligibly small current is passed through a wire of length $15\;cm$ and uniform cross section wire of length $6.0 \times 10^{-7}\;m^2$ and its resistance is measured to be $5.0 \Omega$ What is the resistivity of the material at the temperature of the experiment ?
cbse
class12
physics
ch-3
sec-a
q53
easy
asked
Jun 30, 2015
by
meena.p
1
answer
An electron and proton are freely located in an electric field. Compare (i) electric force on them (ii) the acceleration on them
cbse
class12
physics
ch-1
sec-a
q53
difficult
asked
Apr 24, 2015
by
meena.p
1
answer
If the vertex of the parabola is the point $(-3,0)$ and the directrix is the line $x+5=0$,then its equation is
cbse
class11
math
conic-sections
parabola
exemplar
sec-a
easy
q53
asked
Oct 16, 2014
by
sreemathi.v
1
answer
State whether the following statement is true or false and justify : The equation of the line joining the point (3, 5) to the point of intersection of the lines $4x + y – 1 = 0 $ and $7x – 3y – 35 = 0$ is equidistant from the points (0, 0) and (8, 34)
cbse
class11
ch10
straight-lines
exemplar
sec-a
q53
asked
Jul 9, 2014
by
thanvigandhi_1
1
answer
True-or-False:In the permutations of n things,r taken together,the number of permutation in which m particular things occur together is $(n-m)P_{r-m}\times rP_m$
cbse
math
class11
ch7
permutations-and-combinations
exercise7-3
true-or-false
exemplar
q53
sec-a
easy
asked
May 16, 2014
by
sreemathi.v
1
answer
Number of solutions of the equation $\tan x+\sec x=2\cos x$ lying in the interval $[0,2\pi]$ is
cbse
math
class11
ch3
trigonometric-functions
exemplar
q53
sec-c
difficult
asked
Apr 21, 2014
by
sreemathi.v
1
answer
$\lim\limits_ {x \to 0} \large\frac{\sin (\pi \cos ^2 x) }{x^2}$ is equal to :
jeemain
jeemain-2014
math
q53
medium
asked
Apr 7, 2014
by
meena.p
1
answer
Insulin belongs to the category of
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
medium
q53
asked
Mar 28, 2014
by
thanvigandhi_1
1
answer
Heat of combustion of $ CH_4(g), \: C(graphite),\: H_2(g)$ are -20 kcal, -40 kcal and -10 kcal respectively. The heat of formation of methane is
jeemain
physics
thermodynamics
cbse
class11
class12
q53
medium
asked
Mar 17, 2014
by
thanvigandhi_1
1
answer
Cryolite is
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q53
difficult
asked
Mar 17, 2014
by
meena.p
1
answer
Kodel polymer is prepared by following reaction
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q53
medium
asked
Mar 11, 2014
by
thanvigandhi_1
1
answer
Which of the following aromatic substitution has zero dipolemoment?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q53
medium
asked
Mar 6, 2014
by
sreemathi.v
1
answer
The number of $\sigma$-bonds and $\pi$-bonds in $XeO_4$ are
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
valence-bond-theory
q53
easy
asked
Mar 5, 2014
by
sreemathi.v
1
answer
Diazo compounds,sometimes donot respond Lassaigne's test for nitrogen because
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
diazonium-salts
q53
easy
mock
asked
Mar 4, 2014
by
sreemathi.v
1
answer
In the following compounds?
jeemain
chemistry
class11
organic-chemistry
q53
difficult
basic-organic-chemistry
ch12
asked
Feb 24, 2014
by
meena.p
1
answer
Which is a product X of reaction?
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
aldehyde-and-ketones
q53
medium
asked
Feb 21, 2014
by
sreemathi.v
1
answer
A current of 2A when passed for five hour through a molten metal salt,it deposits 22.2g of metal of atomic weight 177.The oxidation state of metal in metal salt is
jeemain
chemistry
q53
medium
physical-chemistry
class12
ch3
electrochemistry
asked
Feb 17, 2014
by
sreemathi.v
1
answer
The degree and order of differential equation of family of parabolas whose length of latus rectum is fixed and axis is x-axis ,are respectively
jeemain
math
class12
ch9
differential-equations
degree-of-a-differential-equation
q53
medium
asked
Feb 5, 2014
by
meena.p
1
answer
Find the conditions for a co-normal point (h,k) of a parabola $y^2=4ax$
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q53
medium
asked
Feb 5, 2014
by
sreemathi.v
1
answer
Consider the coordination compound,$Na_2[Pt(CN)_4]$.The Lewis acid is
jeemain
chemistry
class12
coordination-compounds
unit9
q53
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Which one of the following is reduced by hydrogen peroxide in acid medium
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q53
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
In a transistor the level of doping for the three region is different . In the order of decreasing doping level,
jeemain
physics
class12
unit19
ch14
q53
easy
semiconductor-electronics
concepts
asked
Jan 28, 2014
by
meena.p
1
answer
Which of the following has no existance as a solid?
jeemain
chemistry
class11
s-block-elements
unit10
q53
medium
asked
Jan 28, 2014
by
sreemathi.v
1
answer
Mean of 10 items was found to be 15. On verification it was found that an item 21 was miscopied as 12. Find the correct mean.
jeemain
math
cbse
class11
statistics
easy
measures-of-dispersion-(mean)
q53
asked
Jan 25, 2014
by
thanvigandhi_1
1
answer
The approx concentration of $H_2O_2$ perhydrol is
jeemain
chemistry
class11
hydrogen
unit9
q53
medium
asked
Jan 23, 2014
by
sreemathi.v
1
answer
Which of the following is not a primary pollutant
jeemain
chemistry
class11
environmental-chemistry
unit14
q53
easy
asked
Jan 21, 2014
by
sreemathi.v
1
answer
Which has the maximum magnetic moment
sat
atomic-structure
jeemain
chemistry
physical-chemistry
class11
unit2
quantum-mechanical-model
q53
easy
asked
Jan 13, 2014
by
sreemathi.v
1
answer
A compound was found to contain 5.37% nitrogen.What is the minimum molecular weight of compound?
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
atomic-and-molecular-masses
q53
easy
asked
Jan 9, 2014
by
sreemathi.v
1
answer
Find the sum of the series 1.4 + 2.5 + 3.6----- upto 20 terms.
jeemain
math
class11
ch9
sequences-and-series
easy
sum-of-n-terms-of-special-series
q53
asked
Jan 3, 2014
by
yamini.v
1
answer
The length of $\perp$ from origin to the plane passing through the point $\overrightarrow a$ and containing the line $\overrightarrow r=\overrightarrow b+\lambda \overrightarrow c$ is ?
jeemain
math
class12
ch11
3d-geometry
equations-of-lines
medium
q53
asked
Jan 3, 2014
by
rvidyagovindarajan_1
1
answer
$\lim\limits_{x\to \large\frac{\pi}{4}}\large\frac{\sqrt 2\cos x-1}{\cos x-1}$=
jeemain
math
class11
ch13
limits-and-derivatives
limits-of-trigonometric-functions
easy
q53
asked
Dec 24, 2013
by
sreemathi.v
1
answer
Suppose f is such , that $f(-x) =-(x) $ for every real x and $\int\limits_0^1 f(x)x=5$ then $\int \limits _{-1}^0 =?$
jeemain
math
class12
ch7
integral-calculus
definite-integrals-by-substitution
medium
q53
asked
Dec 16, 2013
by
meena.p
1
answer
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