JEE Mathematics Differential Equations MCQs Set D

Refer to JEE Mathematics Differential Equations MCQs Set D provided below available for download in Pdf. The MCQ Questions for Full Syllabus Mathematics with answers are aligned as per the latest syllabus and exam pattern suggested by JEE (Main), NCERT and KVS. Multiple Choice Questions for Differential Equations are an important part of exams for Full Syllabus Mathematics and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for JEE (Main) Full Syllabus Mathematics and also download more latest study material for all subjects

MCQ for Full Syllabus Mathematics Differential Equations

Full Syllabus Mathematics students should refer to the following multiple-choice questions with answers for Differential Equations in Full Syllabus.

Differential Equations MCQ Questions Full Syllabus Mathematics with Answers

 

 

Question: The differential equation whose solution is y = A sin x + B cos x, is

  • a)

  • b)

  • c)

  • d) None of these

Answer:

 

Question: y = aemx + be-mx satisfies which of the following differential equations?

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: If x = sint, y = cos pt, then

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question:

is a solution of which of the following differential equation?

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: Family of curves y = ex ( A cos x + B sin x), represents the differential equation

  • a)

  • b)

  • c)

  • d) None of these

Answer:

 

Question:

  • a) x4 y2 + y = 0
  • b) x2 y2 + y = 0
  • c) xy2 - y = 0
  • d) x4y2 - y = 0

Answer: x4 y2 + y = 0

 

Question: Solution of the equation (ex +1) ydy = ( y +1)ex dx is

  • a) c ( y +1)(ex +1) = ey
  • b) c ( y +1)(ex -1)- ey = 0
  • c)  c( y +1)(ex -1)+ ey = 0
  • d) None of these

Answer: c ( y +1)(ex +1) = ey

 

Question:

  • a)

  • b)

  • c)

  • d) None of these

Answer:

 

Question:

  • a)

  • b)

  • c)

  • d) None of these

Answer:

 

Question:

  • a)

  • b)

  • c) (1+ x2 )3/2 + (1+ y2 )3/2 = c
  • d) None of these

Answer:

 

Question: Solution of (x + y -1)dx + (2x + 2y - 3)dy = 0 is

  • a) 2 y + x + log(x + y - 2) = c
  • b) 2y + 2x + log(x + y - 2) = c
  • c) y + 2x + log(x + y - 2) = c
  • d) y + x + log(x + y - 2) = c

Answer: 2 y + x + log(x + y - 2) = c

 

Question: The solution of the differential equation

  • a) None of these
  • b) (x + y)2 = a2x + c
  • c) (x + y)2 = 2a2x + c
  • d) Both

Answer: None of these

 

Question: The degree of the differential equation y = Ax + A3 is :

  • a) 3
  • b) 4
  • c) 2
  • d) 1

Answer: 3

 

Question: The order and degree of the differential equation

  • a) 2 and 1
  • b) 1 and 2
  • c) 1 and 1
  • d) 2 and 2

Answer: 2 and 1

 

Question: The solution of the differential equation

  • a)

  • b)

  • c)

  • d)

Answer:

 

More Questions..............................

 

Question: The degree of the differential equation

  • a) 2
  • b) 1
  • c) 3
  • d) 6

Answer: 2

 

Question: The differential equation for which sin–1x + sin–1y = c is given by:

  • a)

  • b)

  • c)

  • d)

Answer:

 

 

Question: The differential equation representing a family of circles touching the y-axis at the origin is :

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: The elimination of constants A, B and C from y = A + Bx – Ce–x leads the differential equation

  • a) y" + y"' = 0
  • b) y' + ex = 0
  • c) y" – y"' = 0
  • d) y" + ex = 0

Answer: y" + y"' = 0

 

Question: The family of curves represented by the differential equation

  • a) x cos y = constant
  • b) log (x cos y) = x
  • c) cos y = log x
  • d) x cos y = log x

Answer: x cos y = constant

 

Question: The differential equation of y = Ae2x + Be–2x is

  • a)

  • b)

  • c)

  • d) None of these

Answer:

 

Question: The differential equation representing the family of curves y2 = 2c (x + √c ) , where c is a positive parameter, is of

(1) order 1    (2) order 2
(3) degree 3 (4) degree 4

  • a) 1 and 3 are correct
  • b) 1 and 2 are correct
  • c) 1, 2 and 3 are correct
  • d) 2 and 4 are correct

Answer: 1 and 3 are correct

 

Question:

  • a) 1, 2 and 3 are correct
  • b) 2 and 4 are correct
  • c) 1 and 2 are correct
  • d) 1 and 3 are correct

Answer: 1, 2 and 3 are correct

 

Question: Solution of the differential equation

(1) y + e–x = k (2) y – e–x = k
(3) y – ex = k (4) y + ex = k

  • a) 1 and 3 are correct
  • b) 1 and 2 are correct
  • c) 1, 2 and 3 are correct
  • d) 2 and 4 are correct

Answer: 1 and 3 are correct

 

Question: Differential equation dy/dx= f (x).g(y) can be solved by separating variable as dy/g(y)= f (x) dx

The equation of the curve passing through the point (1, 0) and satisfies the differential equation (1 + y2) dx – xy dy = 0, is

  • a) x2 – y2 = 1
  • b) x2 – y2 = 2
  • c) x2 + y2 = 1
  • d) x2 + y2 = 2

Answer: x2 – y2 = 1

 

Question: Differential equation dy/dx= f (x).g(y) can be solved by separating variable as dy/g(y)= f (x) dx Solution of the differential equation

  • a) tan–1 y + sin–1x = c
  • b) tan–1 x + sin–1y = c
  • c) tan–1 y . sin–1x = c
  • d) tan–1 y – sin–1x = c

Answer: tan–1 y + sin–1x = c

 

Question: Differential equation dy/dx= f (x).g(y) can be solved by separating variable as dy/g(y)= f (x) dx If dy/dx = 1 + x + y + xy and y (–1) = 0, then y =

  • a)

  • b)

  • c) ln (1 + x) – 1
  • d) 1 + x

Answer:

 

Question:

Statement-1 : The equation of the curve through the point (1, 0) which satisfies differential equation (1 + y2) dx – xy dy = 0 is x2 – y2 = 1.

Statement-2 : D.E. dy/dx = f (x) . g (y) can be solved by separating variables as dy/g(y)=f (x) dx

  • a) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
  • b) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
  • c) Statement -1 is False, Statement-2 is True.
  • d) Statement -1 is True, Statement-2 is False.

Answer: Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

 

Question:

Statement-1 : The differential equation of all circles in a plane must be of order 3.
Statement-2 : There is only one circle passing through three noncollinear points.

  • a) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
  • b) Statement -1 is False, Statement-2 is True.
  • c) Statement -1 is True, Statement-2 is False.
  • d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

Answer: Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.

 

Question:

Statement-1 : The equation of the curve passing through (3, 9) which satisfies differential equation

Statement-2 : The solution of differential equation

  • a) Statement -1 is True, Statement-2 is False.
  • b) Statement -1 is False, Statement-2 is True.
  • c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
  • d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

Answer: Statement -1 is True, Statement-2 is False.

 

Question: Solution of differential equation

is

  • a) x2 + y2 = px3
  • b) x2 + y3 = px2
  • c) x3 + y2 = px2
  • d) None of these

Answer: x2 + y2 = px3

 

Question: The solution of the equation dy/dx= x/2y-x is

  • a) (x - y)(x + 2y)2 = c
  • b) y = (2y - x) + c
  • c) y = x + c
  • d) None of these

Answer: (x - y)(x + 2y)2 = c

 

Question: The solution of the equation

  • a)

  • b) y = log y +1
  • c) y = xy + c
  • d) None of these

Answer:

 

Question:

  • a) y2 + 2xy - x2 = c
  • b) y2 - 2xy - x2 = c
  • c) y2 + 2xy + x2 = c
  • d) y2 - 2xy + x2 = c

Answer: y2 + 2xy - x2 = c

 

Question: The solution of ye-x/y dx -(xe-x/y + y3)dy = 0 is

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: The solution of the differential equation.

ydx + (x + x2 y)dy = 0 is

  • a)

  • b)

  • c)

  • d) log y = cx

Answer:

 

Question: Solution of the differential equation, ydx - xdy + xy2 dx = 0 is

  • a) 2x + x2 y = λy
  • b) 2y + y2 x = λy
  • c) 2y - y2x = λy
  • d) None of these

Answer: 2x + x2 y = λy

 

Question: y+x2=dy/dx has the solution

  • a) y + x2 + 2x + 2 = cex
  • b) y + x + x2 + 2 = ce2x
  • c) y + x + 2x2 + 2 = cex
  • d) y2 + x + x2 + 2 = cex

Answer: y + x2 + 2x + 2 = cex

 

Question: Integrating factor of the differential equation

  • a) ( √x)log x
  • b) xlog x
  • c) ( √e)log x
  • d) None of these

Answer: ( √x)log x

 

Question: The slope of a curve at any point is the reciprocal of twice the ordinate at the point and it passes through the point (4, 3), then equation of the curve is

  • a) y2 = x + 5
  • b) x2 = y + 5
  • c) y2 = x - 5
  • d) x2 = y -5

Answer: y2 = x + 5

 

Question: The elimination of the arbitrary constant m from the equation y = emx gives the differential equation:

  • a)

  • b)

  • c)

  • d)

Answer:

 

Question: Solution of the differential equation x2y–x3 dy/dx=y4 cos x, when y(0) = 1 is :

  • a) x3 = 3 y3 sin x
  • b) none of these
  • c) x3 ≠ y3 sin x
  • d) y3 = 3x3 sin x

Answer: x3 = 3 y3 sin x

 

Question: The general solution of the differential equation (x + y) dx + xdy = 0 is :

  • a) x2 + 2xy = c
  • b) x2 + y2 = c
  • c) 2x2 – y2 = c
  • d) y2 = c

Answer: x2 + 2xy = c

 

Question:  The solution of differential equation

is :

  • a) y = 1 + ce–x
  • b) y = x + ce–x
  • c) y = 1– ce–x
  • d) y = x – ce–x

Answer: y = 1 + ce–x

 

Question:

  • a) sin x + c1 x + c2
  • b) cos x + c1 x + c2
  • c) tan x + c1x + c2
  • d) log sin x +c1 x + c2

Answer: sin x + c1 x + c2

 

Question:

  • a) 2 cos (xy) + x–2 = c
  • b) 2 sin (xy) + x–2 = c
  • c) 2 cos (xy) + y–2 = c
  • d) 2 sin (xy) + y–2 = c

Answer: 2 cos (xy) + x–2 = c

 

Question: The rate of increase of bacteria in a certain culture is proportional to the number present. If it doubles in 5 hours then in 25 hours, its number would be

  • a) 32 times the original
  • b) 8 times the original
  • c) 16 times the original
  • d) 64 times the original

Answer: 32 times the original

 

Question: The solution of the equation,

is:

  • a) y sec2 x = sec x + c
  • b) y sec x = tan x + c
  • c) y = sec x + c sec2 x
  • d) none of these

Answer: y sec2 x = sec x + c

 

Question:

  • a) sec x
  • b) cos x
  • c) sin x
  • d) tan x

Answer: sec x

 

Question: The solution of x dy – y dx + x2 ex dx = 0 is :

  • a)

  • b)

  • c) x + ey = c
  • d) y + ex = c

Answer:

 

Question: The solution of the differential equation.

  • a) y = sin x
  • b) y = sin x – cos x
  • c) y = cos x
  • d) y = sin x + cos x

Answer: y = sin x

 

Question:

  • a) 1 and 2 are correct
  • b) 1 and 3 are correct
  • c) 1, 2 and 3 are correct
  • d) 2 and 4 are correct

Answer: 1 and 2 are correct

 

Question: Given a function ‘g’ which has a derivative g '(x) for every real x and satisfies g'(0) = 2 and g (x + y) = ey g(x) + ex g(y) for all x and y then

  • a) 1, 2 and 3 are correct
  • b) 1 and 2 are correct
  • c) 2 and 4 are correct
  • d) 1 and 3 are correct

Answer: 1, 2 and 3 are correct

 

Question: The curve for which the area of the triangle formed by the x-axis, the tangent line and radius vector of the point of tangency is equal to a2 is

  • a) 1 and 3 are correct
  • b) 1 and 2 are correct
  • c) 1, 2 and 3 are correct
  • d) 2 and 4 are correct

Answer: 1 and 3 are correct

 

Question:

Statement 1 : The differential equation y3 dy + (x + y2) dx = 0 becomes homogeneous if we put y2 = t.
Statement 2 : All differential equation of first order first degree becomes homogeneous, if we put y = tx.

  • a) Statement -1 is True, Statement-2 is False.
  • b) Statement -1 is False, Statement-2 is True.
  • c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
  • d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

Answer: Statement -1 is True, Statement-2 is False.

 

Question:

  • a) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
  • b) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
  • c) Statement -1 is False, Statement-2 is True.
  • d) Statement -1 is True, Statement-2 is False.

Answer: Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

 

Question:

  • a) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
  • b) Statement -1 is False, Statement-2 is True.
  • c) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
  • d) Statement -1 is True, Statement-2 is False.

Answer: Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.

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