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Recent questions tagged q45
Questions
The resistance of a wire is 'R' ohm. If it i-s melted and stretched to 'n' times its original length , its new resistance will be :
neet
2017
physics
past paper
t1
q45
asked
Oct 31, 2017
by
meena.p
0
answers
Radiation energy corresponding to the temperature T of the sun is E. If its temperature is doubled, then its radiation energy will be :
neet
1998
physics
past paper
t1
q45
asked
Oct 10, 2017
by
priyanka.c
0
answers
A uniform magnetic field of $3000\;G$ is established along the positive z- direction . A rectangular loop of sides $10\;cm$ and $5\;cm$carries a current of $12\;A$. What is the torque on the loop in the fig? What is the force in this case ?
cbse
class12
physics
ch-4
sec-b
q45
ncert
medium
asked
Jul 28, 2015
by
meena.p
1
answer
A telephone cable at a place has four long straight horizontal wires carrying a current of $1.0 \;A$ in the same direction east to west. The earth magnetic field at the place is $ 0.39 \;G$ and the angle of dip is $35^{\circ}$. The magnetic declination is nearly zero. what are the resultant magnetic fields at points $ 4.0 \;cm$ below the cable ?
cbse
class12
physics
ch-5
sec-a
q45
ncert
difficult
asked
Jul 15, 2015
by
meena.p
1
answer
What are the two practical forms of wheat stone bridge?
cbse
class12
physics
ch-3
sec-a
q45
easy
asked
Jun 30, 2015
by
meena.p
1
answer
Can electric field at a point be zero, while electric potential is not zero ?
cbse
class12
physics
ch-1
sec-a
q45
medium
asked
Apr 24, 2015
by
meena.p
1
answer
The equation of the parabola having focus at $(-1,-2)$ and the directrix $x-2y+3=0$ is _________
cbse
class11
math
conic-sections
parabola
exemplar
sec-a
medium
q45
asked
Oct 16, 2014
by
sreemathi.v
1
answer
0.5g KCl was dissolved in 100g water and the solution originally at $20^{\large\circ}C$,froze at $-0.24^{\large\circ}C$.Calculate the percentage ionization of salt.$(K_f$ per 1000g of water =1.86K)
cbse
class12
chemistry
ch2
solutions
sec-c
easy
additionalproblem
q45
asked
Aug 8, 2014
by
sreemathi.v
1
answer
Ozone reacts with
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
important-compounds
medium
q45
asked
Jul 31, 2014
by
thanvigandhi_1
1
answer
The mean deviation of the data is ________ when measured from the median .
cbse
math
class11
ch15
statistics
exemplar
q45
sec-a
easy
asked
Jul 9, 2014
by
meena.p
1
answer
Fil in the blank for the following : The points (3, 4) and (2, – 6) are situated on the ____ of the line $3x – 4y – 8 = 0$ .
cbse
class11
ch10
straight-lines
exemplar
sec-a
medium
q45
asked
Jul 8, 2014
by
thanvigandhi_1
1
answer
How many numbers of 6 digits can be formed from the digits of the number 112233?
cbse
math
class11
ch7
permutations-and-combinations
additionalproblem
q45
sec-b
medium
asked
Jun 20, 2014
by
sreemathi.v
1
answer
Three balls are drawn from a bag containing 5 red,4 white and 3 black balls.The number of ways in which this can be done if at least 2 are red is
cbse
math
class11
ch7
permutations-and-combinations
exercise7-3
exemplar
q45
sec-b
medium
asked
May 16, 2014
by
sreemathi.v
1
answer
$\cos 2\theta\cos 2\phi+\sin^2(\theta-\phi)-\sin^2(\theta+\phi)$ is equal to
cbse
math
class11
ch3
trigonometric-functions
exemplar
q45
sec-b
medium
asked
Apr 21, 2014
by
sreemathi.v
1
answer
Let $\alpha$ and $\beta$ be the roots of equation $px^2 +qx+r=0,p\neq 0.$If p,q,r are in A.P.and $\large\frac{1}{\alpha}+\frac{1}{\beta}$$=4$,then the value of $\mid\alpha-\beta\mid$ is
jeemain
jeemain-2014
math
q45
medium
asked
Apr 7, 2014
by
sreemathi.v
1
answer
Amino acids are least soluble in water
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
medium
q45
asked
Mar 28, 2014
by
thanvigandhi_1
1
answer
Which of the following is most basic
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q45
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
In the alminothermite process, aluminium acts as :-
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q45
difficult
asked
Mar 17, 2014
by
meena.p
1
answer
Calculate the standard entropy change for a reaction $XY$ if the value of $ \Delta H^{\circ} = 28.4 \: kJ$ and equilibrium constant is $1.8 \times 10^{-7}\: at\: 298\: K$.
jeemain
physics
thermodynamics
cbse
class11
class12
q45
medium
asked
Mar 16, 2014
by
thanvigandhi_1
1
answer
Plexiglass is a commercial name of
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q45
medium
asked
Mar 10, 2014
by
thanvigandhi_1
1
answer
The correct one among the following statements about $N_2$ is
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
homonuclear-diatomic-molecular-bonding
q45
medium
asked
Mar 6, 2014
by
sreemathi.v
1
answer
Of the following molecules the only one which is not an exception to the octet rule is :
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
kossel-lewis-approach-to-chemical-bonding
q45
easy
asked
Mar 5, 2014
by
sreemathi.v
1
answer
What would be the reagents for below reaction?
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
amines
q45
difficult
asked
Mar 3, 2014
by
sreemathi.v
1
answer
Which of the following have asymmetric carbon atom ?
jeemain
chemistry
class11
organic-chemistry
q45
medium
mock
basic-organic-chemistry
ch12
asked
Feb 22, 2014
by
meena.p
1
answer
What is the product of the following series of reactions?
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
aldehyde-and-ketones
q45
medium
asked
Feb 21, 2014
by
sreemathi.v
1
answer
At same temperature two bulbs A and B of equal capacity are filled with He and $SO_2$ respectively. If the pressure in two bulbs is same. Calculate the ratio of rms speed for them.
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
kinetic-molecular-theory-of-gases
easy
q45
asked
Feb 16, 2014
by
sharmaaparna1
1
answer
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