Differential Equations  MCQs

MCQs of Differential Equations

Showing 21 to 30 out of 145 Questions
21.
The order and degree of d2ydx2=y+dydx223 are _____ and _____ respectively.
(a) 6 and 1
(b) 3 and 2
(c) 2 and 2
(d) 1 and 1
Answer:

Option (c)

22.
The order and degree of differential equation d2ydx223=1+dydx2 are _____
(a) 4, 4
(b) 2, 4
(c) 4, 2
(d) 2, 2
Answer:

Option (b)

23.
The degree of ex + sindydx=3 is _____
(a) 2
(b) 0
(c) degree is not defined
(d) 1
Answer:

Option (c)

24.
d2ydx2+xdydx2+siny + x2=0 is
(a) homogeneous
(b) linear
(c) of degree 2
(d) of order 2
Answer:

Option (d)

25.
The order of the differential equation of family of circles which passes through origin and whose centre is on y - axis is _____
(a) 1
(b) 2
(c) 3
(d) 4
Answer:

Option (a)

26.
The order of the differential equation of family of circles whose centre is on X - axis is _____
(a) 1
(b) 2
(c) 3
(d) 4
Answer:

Option (b)

27.
The order of the differential equation of family of circles who has radius a is _____
(a) 1
(b) 2
(c) 3
(d) 4
Answer:

Option (b)

28.
The differential equation who has y=easinx as general solution (where a is arbitrary constant) is
(a) logy=tanxdydx
(b) ylogy=tanxdydx
(c) ylogy=cosxdydx
(d) logy=cosxdydx
Answer:

Option (b)

29.
The differential equation of the family of parabola whose vertex is origin and major axis is X - axis is
(a) y2-2xydydx=0
(b) y2+2xydydx=0
(c) y2-2xyd2ydx2=0
(d) y2+2xyd2ydx2=0
Answer:

Option (a)

30.
The differential equation of the family of curve y2=4ax+a where a is arbitrary constant is _____
(a) y2=4dydxx+dydx
(b) y2dydx2+2xydydx-y2=0
(c) y2=dydx+4y=0
(d) 2y=dydx=4a
Answer:

Option (b)

Showing 21 to 30 out of 145 Questions