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JEE Advanced Level Test: Differential Equation- 2 - JEE MCQ


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30 Questions MCQ Test - JEE Advanced Level Test: Differential Equation- 2

JEE Advanced Level Test: Differential Equation- 2 for JEE 2024 is part of JEE preparation. The JEE Advanced Level Test: Differential Equation- 2 questions and answers have been prepared according to the JEE exam syllabus.The JEE Advanced Level Test: Differential Equation- 2 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for JEE Advanced Level Test: Differential Equation- 2 below.
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JEE Advanced Level Test: Differential Equation- 2 - Question 1

The degree of the differential equation satisfying 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 1

putting x = sin A and y = sin B in the given relation, we get
cos ,4 + cos B = a(sin A - sin B)
⇒ A B = 2 cot-1 a
⇒ sin-1 x - sin-1 y = 2 cot-1 a Differentiating w.r.t. x, we get

Clearly, it is a differential equation of degree one

JEE Advanced Level Test: Differential Equation- 2 - Question 2

The differential equation whose solution is Ax2 + By2 = 1, where A and B are arbitrary constants, is of 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 2

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JEE Advanced Level Test: Differential Equation- 2 - Question 3

Differential equation of the family of circles touching the line y = 2 at (0, 2) is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 3


JEE Advanced Level Test: Differential Equation- 2 - Question 4

The differential equation of all parabolas whose axis are parallel to the y-axis is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 4

The equation of a member of the family of parabolas having axis parallel toy-ax is is
y = Ax2 + Bx + C  ......(1)

where A, B, and C are arbitrary constants
Differentiating equation (1) w.r.t. x, we  .....(2)
which on again differentiating w.r.t. jc gives  ......(3)
Differentiating (3) w.r.t. x, we get

JEE Advanced Level Test: Differential Equation- 2 - Question 5

The differential equation of all circles which pass through the origin and whose centers lie on the y-axis is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 5

) be the centre on y-axis then its radius will be k as it passes through origin. Hence its equation is


JEE Advanced Level Test: Differential Equation- 2 - Question 6

The differential equation whose general solution is given by, y =  where c1, c2, c3, c4, c5 are arbitrary constants, 
is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 6





JEE Advanced Level Test: Differential Equation- 2 - Question 7

The equation of the curves through the point (1, 0) and whose slope is  

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 7


JEE Advanced Level Test: Differential Equation- 2 - Question 8

The solution of the equation log(dy/dx) = ax + by is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 8

JEE Advanced Level Test: Differential Equation- 2 - Question 9

Solution of differential equation dy – sin x sin ydx = 0 is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 9


JEE Advanced Level Test: Differential Equation- 2 - Question 10

The solution of the equation 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 10

Putting u = x - y, we get du/dx = 1 - dy/dx. The given equation can be written as 1 - du/dx = cos u

JEE Advanced Level Test: Differential Equation- 2 - Question 11

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 11


JEE Advanced Level Test: Differential Equation- 2 - Question 12

The general solution of the differential equation 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 12


JEE Advanced Level Test: Differential Equation- 2 - Question 13

The solutions of (x + y + 1) dy = dx is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 13

Putting x + y 1 = u, we have du = dx + dy and the given equations reduces to u(du - dx) = dx

JEE Advanced Level Test: Differential Equation- 2 - Question 14

The slope of the tangent at (x, y) to a curve passing through is given by  then the equation of the curve is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 14



On integration, we get

This passes through (1,π/4), therefore 1 = log C.

JEE Advanced Level Test: Differential Equation- 2 - Question 15

The solution of (x2 + xy)dy = (x2 + y2)dx is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 15


∴ equation reduces to



 

JEE Advanced Level Test: Differential Equation- 2 - Question 16

The solution of (y + x + 5)dy = (y – x + 1) dx is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 16

The intersection of y – x + 1 = 0 and y + x + 5 = 0 is (-2, -3).
Put x = X - 2, y = Y - 3 
The given equation reduces to 
putting Y = vX, we get


JEE Advanced Level Test: Differential Equation- 2 - Question 17

The slope of the tangent at (x, y) to a curve passing through a point (2, 1) is  then the equation of the curve is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 17


∴ equation (1) transforms to



JEE Advanced Level Test: Differential Equation- 2 - Question 18

The solution of  satisfying y(1) = 1 is given by 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 18

Rewriting the given equation as



Hence y2 = x(1 +x) - 1 which represents a system of hyperbola.

JEE Advanced Level Test: Differential Equation- 2 - Question 19

Solution of the equation  where 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 19

The given differential equation can be written as  which is linear differential equation of first order.





JEE Advanced Level Test: Differential Equation- 2 - Question 20

A function y = f(x) satisfies (x + 1) f ' (x) - 2 (x2 + x)f(x) =  5, then f(x) is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 20


JEE Advanced Level Test: Differential Equation- 2 - Question 21

The general solution of the equation 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 21


JEE Advanced Level Test: Differential Equation- 2 - Question 22

The solution of the differential equation 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 22



Integrating, we get the solutions

JEE Advanced Level Test: Differential Equation- 2 - Question 23

Which of the following is not the differential equation of family of curves whose tangent from an angle of π/4 with the hyperbola xy = c2

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 23



JEE Advanced Level Test: Differential Equation- 2 - Question 24

Tangent to a curve intercepts the y-axis at a point P. A line perpendicular to this tangent through P passes through another point (1, 0). The differential equation of the curve is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 24


The equations of the tangent at the point

The coor dinates of  the  point P are 
The slope of the perpendiculer line


which is the rquried differential equation to the curve at y = f(x). 

JEE Advanced Level Test: Differential Equation- 2 - Question 25

The curve for which the normal at any point (x, y) and the line joining the origin to that point from an isosceles triangle with the x-axis as base is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 25

It is given that the triangle OPC is an isosceles triangle.


Therefore, OM= MG = sub-normal

On integration, we get x2 -y2 = C, which is a rectangular hyperbola

JEE Advanced Level Test: Differential Equation- 2 - Question 26

The curve satisfying the equation  and passing through the point (4, - 2 ) is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 26




It passes through the point (4, -2).

JEE Advanced Level Test: Differential Equation- 2 - Question 27

A normal at P(x, y) on a curve meets the x-axis at Q and N is the foot of the ordinate at   then the equation of curve given that it passes through the point (3,1) is 

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 27

Let the equation of the curve be y = f(x).




It is lincar differential equation.

JEE Advanced Level Test: Differential Equation- 2 - Question 28

The equation of the curve passing through (2, 7/2) and having gradient  is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 28


This passes through (2, 7/2),

Thus the equation of the curve is

JEE Advanced Level Test: Differential Equation- 2 - Question 29

A normal at any point (x, y) to the curve y = f(x) cuts a triangle of unit area with the axis, the differential equation of the curve is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 29

Equation of normal at point p is
Y – y = (dx/dy)(X – x) 

JEE Advanced Level Test: Differential Equation- 2 - Question 30

The differential equation of all parabola each of which has a latus rectum 4a and whose axis parallel to the x-axis is

Detailed Solution for JEE Advanced Level Test: Differential Equation- 2 - Question 30

Equations to the family of parabolas is (y - k)2 = 4a (x - h)


(substing y - k from equations (1))
Hence the order is 2 and the degree is 1.

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