1
NDA Mathematics 3 September 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the equation of directrix of parabola y2 = 4bx, where b < 0 and b2 + b - 2 = 0?
A
x + 1 = 0
B
x - 2 = 0
C
x - 1 = 0
D
x + 2 = 0
2
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
An equilateral triangle is inscribed in a parabola x2 = $\sqrt{3}$y where one vertex of the triangle is at the vertex of the parabola. If p is the length of side of the triangle and q is the length of the latus rectum, then which one of the following is correct ?
A
p = q
B
p = $\sqrt{3}$q
C
p = 2$\sqrt{3}$q
D
2$\sqrt{3}$p = q
3
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
The area of the region bounded by the parabola y2 = 4kx, where k > 0 and its latus rectum is 24 square units. What is the value of k ?
A
1
B
2
C
3
D
4
4
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the equation of the parabola with focus (-3, 0) and directrix x - 3 = 0 ?
A
y2 = 3x
B
x2 = 12y
C
y2 = 12x
D
y2 = -12x
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