Mathematics - II (3110015) MCQs

MCQs of Differential Equations of First Order

Showing 11 to 20 out of 34 Questions
11.
A solution of a D.E. in which the number of arbitrary constants is equal to the order of D.E. is called the …… solution.
(a) General
(b) Particular
(c) Singular
(d) None
Answer:

Option (a)

12.
Choose the appropriate option for differential equation exdydx+3y=x3y.
(a) Neither Separable nor Linear
(b) Both Linear and Separable
(c) Linear but not Separable
(d) Separable but not Linear
Answer:

Option (b)

13.
Which of the following equation is linear?
(a) y'+xy2=1
(b) x2y'+y2=ex
(c) y'+3y=xy2
(d) None
Answer:

Option (d)

14.
The differential equation dydx=-x+y1+x2 is ........
(a) of a variable separable form
(b) homogeneous
(c) linear
(d) of second order
Answer:

Option (c)

15.
The solution of dydx=ex+y is .......
(a) ex+ey=c
(b) ex+e-y=c
(c) ex-ey=c
(d) ex-e-y=c
Answer:

Option (b)

16.
The differential equation y'=xy, y(1)=1 has ..........
(a) Infinite number of solutions
(b) No solution
(c) A unique solution
(d) Only two solution
Answer:

Option (c)

17.
General solution of 9yy'+4x=0 is .......
(a) 9y2-4x2=c
(b) 9y2+4x=c
(c) 9y2+4x2=c
(d) 9y+4x2=c
Answer:

Option (c)

18.
The solution of (1+y2)dx+dy=0 is ......
(a) x=cot (y)+c
(b) y=cot (x)+c
(c) y=cot (x+c)
(d) None
Answer:

Option (a)

19.
Which is the I.F. for differential equation dydx+Py=Q ?
(a) eQ dx
(b) eP dx
(c) e-P dx
(d) eQ dy
Answer:

Option (b)

20.
Solution of y'-y=e2x is ......
(a) y=e3x+ce2x
(b) y=ex+cx2
(c) y=ex+e2x
(d) y=cex+e2x
Answer:

Option (d)

Showing 11 to 20 out of 34 Questions