Mathematics - II (3110015) MCQs

MCQs of Vector Calculus

Showing 71 to 79 out of 79 Questions
71.
The path traversal in calculating the Green’s theorem is
(a) Inwards
(b) Clockwise
(c) Anticlockwise
(d) Outwards
Answer:

Option (c)

72.
Let C be the boundary of the triangle whose vertices are (0,0), (1,0) and (1,1). Then ∮Cx2y dx+x2 dy= ____________.
(a) 512
(b) 14
(c) -2
(d) -512
Answer:

Option (a)

73.
Let C be the boundary of the region bounded by y=0, y=2x and x+y=3. Then ∮Cx2+2ydx+4x+y2dy=
(a) -2
(b) 9
(c) 6
(d) 0
Answer:

Option (c)

74.
Let ‘A’ be the area of the plane region R bounded by closed curve C. Then by Green’s theorem 2A= _________.
(a) 12∮C-y dy+x dx
(b) ∮Cx dy-y dx
(c) ∮Cy dy+x dx
(d) 12∮C-y dx+x dy
Answer:

Option (b)

75.
By using Green’s theorem, the area of an ellipse x225+y2289=1 is
(a) 80π
(b) 425π
(c) 85π
(d) 75π
Answer:

Option (c)

76.
The form ∮cM dy -N dx =∬R∂M∂x+∂N∂ydxdy represents ______________ form of Green’s theorem.
(a) Flux-curl
(b) Tangential
(c) Flux-circulation
(d) Flux-divergence
Answer:

Option (d)

77.
What is the outward flux of a vector field F=x2+2xyi^+y2-2xyj^ across the curve bounded by y=x and y=x2?
(a) 415
(b) 15
(c) 0
(d) -415
Answer:

Option (a)

78.
The form ∮cM dx +N dy=∬R∂N∂x-∂M∂ydxdy represents ______________ form of Green’s theorem.
(a) Flux-curl
(b) Tangential
(c) Flux-circulation
(d) Flux-divergence
Answer:

Option (b)

79.
The circulation of ∮Cx+sinydx+x+cosydy around and over the region bounded by the lines y=0, x=1, y=π and x=0 is
(a) 0
(b) 2π
(c) π
(d) -2π
Answer:

Option (c)

Showing 71 to 79 out of 79 Questions