Maths-
General
Easy
Question
The equation of circle which touches the line 5x + 12 y =1 and which has its centre at (3, 4) is:
- none of these
Hint:
Find the radius of the circle and substitute required values in the standard equation of the circle.
The correct answer is: 
Related Questions to study
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
so 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
so 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.
Physics-
A bob of mass
is suspended by a massless string of length
. The horizontal velocity
at position
is just sufficient to make it reach the point
. The angle
at which the speed of the bob is half of that at
, satisfies


A bob of mass
is suspended by a massless string of length
. The horizontal velocity
at position
is just sufficient to make it reach the point
. The angle
at which the speed of the bob is half of that at
, satisfies

Physics-General

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.
\ 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.
\ Required point is (0, 5, 7).
Hence (c) is the correct answer.
maths-
maths-General
maths-
is equal to
Let direction cosines of straight line be l, m, n
\ 4l + m + n = 0
l – 2m + n = 0
Þ Þ
\ Equation of straight line is .
Hence (c) is the correct choice.
is equal to
maths-General
Let direction cosines of straight line be l, m, n
\ 4l + m + n = 0
l – 2m + n = 0
Þ Þ
\ Equation of straight line is .
Hence (c) is the correct choice.
maths-
Let denotes greatest integer function, then is equal to
Since these two lines are intersecting so shortest distance between the lines will be 0.
Hence (c) is the correct answer.
Let denotes greatest integer function, then is equal to
maths-General
Since these two lines are intersecting so shortest distance between the lines will be 0.
Hence (c) is the correct answer.
maths-
The value of is equal to
Given plane y + z + 1 = 0 is parallel to x-axis as 0.1 + 1.0 + 1.0 = 0
but normal to the plane will be perpendicular to x-axis.
Hence (c) is the correct answer.
The value of is equal to
maths-General
Given plane y + z + 1 = 0 is parallel to x-axis as 0.1 + 1.0 + 1.0 = 0
but normal to the plane will be perpendicular to x-axis.
Hence (c) is the correct answer.
Maths-
The value of
(where {x} is the fractional part of x) is
The value of
(where {x} is the fractional part of x) is
Maths-General