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Questions asked by excellentdeals18
Questions
14
questions
2
answers selected
ELECTRICITY QUESTION PLEASE HELPPPP
asked
Jul 7, 2016
1
answer
Two identical slabs are welded end to end and 20 cal of heat flows through it for 4 min. if the two slabs are now welded by placing them one above the other and the same heat is flowing through two ends under the same difference of temperature the time taken is
asked
Feb 16, 2016
1
answer
The line 2x+1=0 cuts the circle x^2+y^2=4 cuts in A and B the equation of the circle with AB as diameter is
asked
Feb 10, 2016
1
answer
The distance between Hyderabad and Khammam is 250km. Find the total space that must be left between rails to allow for a change of temperature from 15 degree celcius in winter to 45 degree celcius in summer alpha= 12*10^-6/degree celcius
asked
Jan 28, 2016
1
answer
To travel through the same distance in two different media, a light ray of certain frequency takes different times which are in the ratio 3 : 5, the relative refractive index is:
asked
Nov 3, 2015
1
answer
a body dropped freely from a height h on to a horizontal plane, bounces up and down and finally comes to rest. the coefficient of restitution is e. the ratio of velocities at the beginning and after two rebounds is
asked
Jul 28, 2015
1
answer
which of the following is correct about half life period?
jeemain
class12
cbse
chemistry
chemical-kinetics
asked
Jul 18, 2015
1
answer
The rate of reaction for A---> products is 10 mol.lit-1.min-1 at time t1=5minutes. what will be the rate at the time t2=10minutes
cbse
class12
jeemain
physical-chemistry
difficult
ch3
kinetics
chemical
asked
Jul 7, 2015
1
answer
consider the equation sec θ+cosec θ=a, θ ∈(0,2π)-{ π/2, π,3π/2}
jeemain
math
class12
olympiad
cbse
trigonometry
asked
Jul 4, 2015
0
answers
for a very dilute solution of h3po3 van't hoff factor
chemistry
class12
liquid-solutions
colligative
properties
jeemain
jeeadvance
asked
Jul 4, 2015
1
answer
if a solute under goes dimerization and trimerizaton, the minimum values of the van't hoff factors are
class12
ch2
chemistry
liquid-solutions
colligative
properties
jeemain
jeeadvance
asked
Jul 4, 2015
1
answer
Benzoic acid undergoes dimerisation in benzene solution. the vant's hoff factor'i' is related to the degree of association 'α' of the acid as
chemistry
class12
liquid-solutions
colligativeproperties
jeemain
jeeadvance
asked
Jul 4, 2015
1
answer
18 gms of glucose and 6 gms Urea are dissolved in 1 litre aqueous solution at 27 °c. the osmotic pressure of solution will be
chemistry
class12
solutions
jeemain
jeeadvance
colligative
properties
asked
Jul 3, 2015
1
answer
calculate the molal solution depression constant of a solvent which has freezing point 16.6° and latent heat of fusion 180.75J/g
chemistry
class12
solutions
jeemain
jeeadvance
asked
Jul 2, 2015
1
answer
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