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Question
If integrating factor of 
is 
then P is
The correct answer is:
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physics-
Cathode rays are made to pass between the poles of a magnet as shown in figure The effect of magnetic field is
Cathode rays are made to pass between the poles of a magnet as shown in figure The effect of magnetic field is
physics-General
physics-
A neutron, a proton, an electron and an alpha particle enter a region of constant magnetic field with equal velocities The magnetic field is along the inward normal to the plane of the paper The tracks of the particles are labled in the figure The electron follows ____ track and alpha particle follows track ______
A neutron, a proton, an electron and an alpha particle enter a region of constant magnetic field with equal velocities The magnetic field is along the inward normal to the plane of the paper The tracks of the particles are labled in the figure The electron follows ____ track and alpha particle follows track ______
physics-General
physics-
A graph regarding photoeletric effect is shown between the maximum kinetic energy of electrons and the frequency of the incident light On the basis of data as shown in the graph, calculate the work function
A graph regarding photoeletric effect is shown between the maximum kinetic energy of electrons and the frequency of the incident light On the basis of data as shown in the graph, calculate the work function
physics-General
physics-
The graph between the stopiing potential 
and 
is shown in figure, 
and 
are work functions Which of the following is
The graph between the stopiing potential and is shown in figure, and are work functions Which of the following is
physics-General
maths-
The equation of circle which touches the line 5x + 12 y =1 and which has its centre at (3, 4) is:
The equation of circle which touches the line 5x + 12 y =1 and which has its centre at (3, 4) is:
maths-General
physics-
1. 
2. 
3. 
4. 
Identify the wrong description of the above figures
1.
2.
3.
4.
Identify the wrong description of the above figures
physics-General
physics-
Match the List I with the List II from the combinations shown
Match the List I with the List II from the combinations shown
physics-General
physics-
The resolving limit of healthy eye is about
Resolving limit of eye is one minute (1').
The resolving limit of healthy eye is about
physics-General
Resolving limit of eye is one minute (1').
physics-
A person is suffering from myopic defect. He is able to see clear objects placed at 15 cm. What type and of what focal length of lens he should use to see clearly the object placed 60 cm away
For viewing far objects, concave lenses are used and for concave lens
u = wants to see
; v = can see
so from
.
u = wants to see
; v = can seeso from
.A person is suffering from myopic defect. He is able to see clear objects placed at 15 cm. What type and of what focal length of lens he should use to see clearly the object placed 60 cm away
physics-General
For viewing far objects, concave lenses are used and for concave lens
u = wants to see; v = can see
so from.
u = wants to see
; v = can seeso from
.physics-
A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation which of the following is true
In minimum deviation position refracted ray inside the prism is parallel to the base of the prism
A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation which of the following is true
physics-General
In minimum deviation position refracted ray inside the prism is parallel to the base of the prism
physics-
In the given figure, what is the angle of prism
Angle of prism is the angle between incident and emergent surfaces.
In the given figure, what is the angle of prism
physics-General
Angle of prism is the angle between incident and emergent surfaces.
physics-
A given ray of light suffers minimum deviation in an equilateral prism P. Additional prisms Q and R of identical shape and material are now added to P as shown in the figure. The ray will suffer
As the prisms Q and R are of the same material and have identical shape they combine to form a slab with parallel faces. Such a slab does not cause any deviation.
A given ray of light suffers minimum deviation in an equilateral prism P. Additional prisms Q and R of identical shape and material are now added to P as shown in the figure. The ray will suffer
physics-General
As the prisms Q and R are of the same material and have identical shape they combine to form a slab with parallel faces. Such a slab does not cause any deviation.
maths-
The foot of the perpendicular on the line 
drown from the origin is C if the line cuts the x-axis and y-axis at A and B respectively then BC : CA is
Let direction ratios of the required line be <a, b, c>
Therefore a - 2 b - 2 c = 0
And 2 b + c = 0
Þ c = - 2 b
a - 2 b + 4b = 0 Þ a = - 2 b
Therefore direction ratios of the required line are <- 2b, b, - 2b> = <2, - 1, 2>
direction cosines of the required line
= 
Therefore a - 2 b - 2 c = 0
And 2 b + c = 0
Þ c = - 2 b
a - 2 b + 4b = 0 Þ a = - 2 b
Therefore direction ratios of the required line are <- 2b, b, - 2b> = <2, - 1, 2>
direction cosines of the required line
= The foot of the perpendicular on the line drown from the origin is C if the line cuts the x-axis and y-axis at A and B respectively then BC : CA is
maths-General
Let direction ratios of the required line be <a, b, c>
Therefore a - 2 b - 2 c = 0
And 2 b + c = 0
Þ c = - 2 b
a - 2 b + 4b = 0 Þ a = - 2 b
Therefore direction ratios of the required line are <- 2b, b, - 2b> = <2, - 1, 2>
direction cosines of the required line
=
Therefore a - 2 b - 2 c = 0
And 2 b + c = 0
Þ c = - 2 b
a - 2 b + 4b = 0 Þ a = - 2 b
Therefore direction ratios of the required line are <- 2b, b, - 2b> = <2, - 1, 2>
direction cosines of the required line
= maths-
(where a, b are integers) =
The centre of the sphere is (1, 2, –3) so if other extremity of diameter is (x1, y1, z1), then
= 1, 
= 2, 
= –3
\ Required point is (0, 5, 7).
Hence (c) is the correct answer.
= 1, = 2, = –3\ Required point is (0, 5, 7).
Hence (c) is the correct answer.
(where a, b are integers) =
maths-General
The centre of the sphere is (1, 2, –3) so if other extremity of diameter is (x1, y1, z1), then
= 1, = 2, = –3
\ Required point is (0, 5, 7).
Hence (c) is the correct answer.
= 1, = 2, = –3\ Required point is (0, 5, 7).
Hence (c) is the correct answer.
maths-
maths-General