Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Recent questions in JEEMAIN and NEET
Questions
>>
JEEMAIN and NEET
JEEMAIN and NEET
Mathematics
Physics
Chemistry
Biology
NEET PAST PAPERS
JEEMAIN PAST PAPERS
find value of $K_1$ and $K_2$ for which $y= \large\frac{x}{K_1} $$+K_2$ is a solution of differential equation $y''-2y' -3y=x$
jeemain
math
class12
ch9
differential-equations
linear-differential-equations
q54
easy
asked
Feb 6, 2014
by
meena.p
1
answer
Which of the following does not represent Charle's law?
charles-law
easy
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
asked
Feb 5, 2014
by
balaji
1
answer
Which of the following does not represent Boyle's law?
boyles-law
easy
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
asked
Feb 5, 2014
by
balaji
3
answers
An oxide of nitrogen at NTP has a density equal to another oxide of Nitrogen at $12^{\circ}$. If we consider pressure conditions to be the same, what are the two oxides involved?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
medium
asked
Feb 5, 2014
by
balaji
1
answer
In the adjoining infinite circuit, what is the effective resistance as seen by the battery
jeemain
physics
current-electricity
cbse
class12
ch4
equivalent-resistance
difficult
asked
Feb 5, 2014
by
thanvigandhi_1
1
answer
At $0^{\circ}$, the density of carbon-di-oxide is the same as that of an oxide of nitrogen. The oxide of nitrogen is which of the following, considering the pressure conditions to be the same?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
easy
asked
Feb 5, 2014
by
balaji
1
answer
In a closed container, if we increase the temperature of the vessel, the pressure also increases due to:
jeemain
physics
kinetic-theory-of-gases
medium
kinetic-theory-of-an-ideal-gas
pressure-of-an-ideal-gas kinetic-interpretation-of-temperature
speed-of-molecules
class11
ch13
asked
Feb 5, 2014
by
balaji
1
answer
A charge Q is to be divided on two objects . What should be the values of the charges on the objects so that the force between the objects can be maximum
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
coulomb-law
medium
asked
Feb 5, 2014
by
yamini.v
1
answer
According to Maxwell's distribution of velocities, with an increase in temperature, which of the following is true?
jeemain
physics
kinetic-theory-of-gases
medium
kinetic-theory-of-an-ideal-gas
kinetic-interpretation-of-temperature
class11
ch13
speed-of-molecules
asked
Feb 5, 2014
by
balaji
1
answer
To double the full scale reading of any galvanometer turned into a voltmeter, you must
jeemain
physics
current-electricity
cbse
class12
ch4
meter-bridge-and-potentiometer-instrumentation
difficult
asked
Feb 5, 2014
by
thanvigandhi_1
1
answer
The electric field in a region is radially outward with magnitude $E=A\;r\;$ . Find the charge contained in a sphere of radius a centered at the origin . Take $\;A=90\;Vm^{-2}\;$ and $\;a = 2m\;$
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-flux-and-dipole
medium
asked
Feb 5, 2014
by
yamini.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
The value of each of the resistors is R. The equivalent resistance between A and B is
jeemain
physics
current-electricity
cbse
class12
ch4
equivalent-resistance
easy
asked
Feb 5, 2014
by
thanvigandhi_1
1
answer
Find the solution : $y (\log x-1) y dx=x dy $
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q52
medium
asked
Feb 5, 2014
by
meena.p
1
answer
A thin metallic spherical shell contains a charge Q on it . A point charge q is placed at the centre of the shell and another charge $\;q_{1}\;$ is placed outside it as shown in figure . All the three charges are +ve . The force on the charge at centre is
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
force-between-multiple-charges
medium
asked
Feb 5, 2014
by
yamini.v
1
answer
Solve and get solutions : $ \bigg( x +y \large\frac{dy}{dx}\bigg)=\bigg( y -x \large\frac{dy}{dx}\bigg) \bigg(x^4+\large\frac{y^6}{x^2}$$+3 (x^2y^2+y^4)\bigg)$
jeemain
math
class12
ch9
differential-equations
formation-of-differential-equations
q51
difficult
asked
Feb 5, 2014
by
meena.p
1
answer
Solution of differential equation $\large\frac{dy}{dx} +\frac{y}{x}$$=x^3 y^5$ is which of the following?
jeemain
math
class12
ch9
differential-equations
formation-of-differential-equations
q50
medium
asked
Feb 5, 2014
by
meena.p
1
answer
Two identical particles , each having a charge of $\;2\times10^{-4}\;C\;$ and mass 10g are kept at a separation of 10 cm and released . What would be the speeds of the particles when the separation becomes large ?
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential-energy-of-a-system-of-charges
medium
asked
Feb 5, 2014
by
yamini.v
2
answers
Find the conditions for a co-normal point (h,k) of a parabola $y^2=4ax$
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q53
medium
asked
Feb 5, 2014
by
sreemathi.v
1
answer
The solution of differential equation $(x^2-1) \large\frac{dy}{dx}$$+2xy =\large\frac{1}{x^2-1}$
jeemain
math
class12
ch9
differential-equations
homogeneous-differential-equations
q49
easy
asked
Feb 5, 2014
by
meena.p
1
answer
A particle having a charge of $\;2 \mu C\;$ is placed directly below and at a separation of 10 cm from the bob of a simple pendulum at rest . What charge should the bob be given so that the string becomes loose ? mass of the bob is 1 kg .
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
coulomb-law
medium
asked
Feb 5, 2014
by
yamini.v
1
answer
Find the equation of common tangent to the parabola $y^2=4x$ and $x^2=4y$?
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q52
medium
asked
Feb 5, 2014
by
sreemathi.v
1
answer
Which of the following equation is linear ?
jeemain
math
class12
ch9
differential-equations
ordinary-differential-equations
q48
easy
asked
Feb 5, 2014
by
meena.p
1
answer
Find the area of $\Delta ABC$ where AC is focal chord of the parabola $y^2=4ax$ & B is the vertex of parabola $y^2=4ax$?
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q51
medium
asked
Feb 5, 2014
by
sreemathi.v
1
answer
Find the equation of straight line touching both $x^2+y^2=2$ and $y^2=8x$.
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q50
medium
asked
Feb 5, 2014
by
sreemathi.v
1
answer
Find the value of $\lambda$ such that $\Delta =0$ for the equation $x^2+y^2-3x+2y+\lambda=0$
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q49
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
The electric field and the electric potential at a point are E and V respectively
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
easy
asked
Feb 5, 2014
by
yamini.v
1
answer
Find the equation of normal for the parabola $y^2=4ax$ in parametric form
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q48
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
A point charge q is rotated along a circle in the electric field generated by another point charge Q . The work done by the electric field on the rotating charge in one complete revolution is
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
medium
asked
Feb 5, 2014
by
yamini.v
1
answer
Find the equation of tangent at $(x_1,y_1)$ for the parabola $y^2=4ax$?
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q47
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
Equation of normal for the parabola $y^2=4ax$ at point $(x_1,y_1)$ is
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q46
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
The graph of the function $y=f(x)$ passing through the point $(0,1)$ and satisfy the differential equation $\large\frac{dy}{dx}$$+y \cos x =\cos x $ is such that
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q47
difficult
asked
Feb 5, 2014
by
meena.p
1
answer
Two charged particles having charge $\;2.0\times10^{-8}\;C\;$ each are joined by an insulating string of length 1m and the system is kept on smooth horizontal table . Find the tension in the string
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
coulomb-law
medium
asked
Feb 5, 2014
by
yamini.v
1
answer
Find the coordinate of double ordinate of parabola $y^2=4ax$?
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q45
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
Which one of the following curves represents the solution of the initial value problem $y= D(e^x-1)$ where $D= \large\frac{dy}{dx}$ and $y(0)=50$
jeemain
math
class12
ch9
differential-equations
formation-of-differential-equations
q46
difficult
asked
Feb 5, 2014
by
meena.p
1
answer
Find the equation of parabola whose focus (-4,0) & vertex (0,0)?
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q44
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
The energy required for the ionisation of a certain atom is $3.44\times10^{-18}J$. The absorption of a photon of unknown wavelength ionises the atom and ejects an electron with velocity $1.03\times10^6$ m/sec. Calculate the wavelength of the incident radiation.
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
medium
q169
asked
Feb 5, 2014
by
sharmaaparna1
1
answer
Find the tangent at the parametric coordinate of parabola $y^2=4ax$?
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q43
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
Calculate the wavelength of the first line and the series limit for the Lyman series for hydrogen.(Series limit is for the case when $n_2 = \infty)$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
bhor's-model
medium
q168
asked
Feb 5, 2014
by
sharmaaparna1
1
answer
Find the vertex of parabola $x^2+4x+4-y=0$
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q42
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
The general solution of the differential equation $\large\frac{dy}{dx}=\frac{-y}{x}$ is a family of curves which looks most like which of the following
jeemain
math
class12
ch9
differential-equations
ordinary-differential-equations
q45
difficult
asked
Feb 5, 2014
by
meena.p
1
answer
An electron difraction experiment was performed with a beam of electrons accelerated by a potential difference of 10.0kV.What is the wavelength of the electron beam?(1KV = 1000V = 1000eV for the electron)
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
easy
q167
asked
Feb 5, 2014
by
sharmaaparna1
1
answer
Electric potential has the dimensions of
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
medium
asked
Feb 5, 2014
by
yamini.v
1
answer
Find the axis,vertex,focus & equation of directrix for the parabola $y^2=4ax$?
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q41
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
A proton is accelerated to one tenth of the velocity of light. Suppose velocity can be measured with a precision of $\pm1\%$, what can be the uncertainity in its position?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
medium
q166
asked
Feb 5, 2014
by
sharmaaparna1
1
answer
A straight line drawn perpendicular to the axis and terminated at both end of the curve is a _________________ of the parabola.
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q40
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
What is the conic represent $x^2+2x+y+1=0$
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q39
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
The speed of a certain proton is $4.5\times10^5m$ If the uncertainity is to be reduced to 0.01percent, what uncertainity in its location must be tolerated?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
medium
q165
asked
Feb 5, 2014
by
sharmaaparna1
1
answer
Electric potential on the surface of a solid sphere of radius R is V . Then potential at $\;r=\large\frac{R}{2}\;$ is
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatics-of-conductors
medium
asked
Feb 5, 2014
by
yamini.v
1
answer
For the equation $ax^2+2hxy+by^2+2gx+2fy+c=0$ to be parabola what should be the conditions?
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q38
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
Page:
« prev
1
...
282
283
284
285
286
287
288
...
393
next »
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...