Differential Equations  MCQs

MCQs of Differential Equations

Showing 11 to 20 out of 145 Questions
11.
The solution of the differential equation dydx+2x=0 with y(1)=1 is given by _____
(a) y=1x
(b) y=1x2
(c) x=1y2
(d) x2=1y2
Answer:

Option (b)

12.
The number of arbitrary constants in the general solution of a differential equation of second order is _____
(a) 1
(b) 0
(c) 2
(d) 4
Answer:

Option (c)

13.
The number of arbitrary constants in the particular solution of a differential equation of fourth order is _____
(a) 4
(b) 2
(c) 1
(d) 0
Answer:

Option (d)

14.
The differential equation dydx=ex+y has solution _____ .
(a) ex+e-y=c
(b) ex+ey=c
(c) e-x+ey=c
(d) e-x+e-y=c
Answer:

Option (a)

15.
the degree of differential equation 1+dydx323=xd2ydx2 is _____.
(a) 3
(b) 2
(c) 6
(d) 1
Answer:

Option (a)

16.
The solution of the differential equation 2xdydx-y=0; y(1)=2 represents _____ .
(a) straight line
(b) parabola
(c) circle
(d) ellipse
Answer:

Option (b)

17.
The order and degree of differential equation sinxdx+dy = cosxdx-dy are _____ and _____ respectively.
(a) 1, 2
(b) 2, 2
(c) 1, 1
(d) 2, not obtained
Answer:

Option (c)

18.
The order and degree of differential equation 4d2ydx2+dydx+ydx = x2 are _____ and _____ respectively.
(a) 2, 1
(b) 3, 1
(c) 2, 2
(d) not obtained, 1
Answer:

Option (b)

19.
If p and q are order and degree of ydydx+x3d2ydx2+xy=cosx then _____
(a) p < q
(b) p = q
(c) p > q
(d) none of these
Answer:

Option (c)

20.
The order and degree of differential equation d2ydx223=y+dydx12 are _____ and _____ respectively.
(a) 2, 4
(b) 1, 4
(c) 2, 3
(d) 2, 2
Answer:

Option (a)

Showing 11 to 20 out of 145 Questions