1
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The point of intersection of the line joining the points ($$-$$3, 4, $$-$$8) and (5, $$-$$6, 4) with XY-plane is
A
$$\left( {{7 \over 3}, - {8 \over 3},0} \right)$$
B
$$\left( { - {7 \over 3}, - {8 \over 3},0} \right)$$
C
$$\left( { - {7 \over 3},{8 \over 3},0} \right)$$
D
$$\left( {{7 \over 3},{8 \over 3},0} \right)$$
2
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If the angle between the lines whose direction ratios are (2, $$-$$1, 2) and is $${\pi \over 4}$$, then the smaller value of x is
A
52
B
4
C
2
D
1
3
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A variable plane passes through a fixed point (a, b, c) and cuts the axes in A, B, and C respectively. The locus of the centre of the sphere OABC, O being the origin, is
A
$${x \over a} + {y \over b} + {z \over c} = 1$$
B
$${a \over x} + {b \over y} + {c \over z} = 1$$
C
$${a \over x} + {b \over y} + {c \over z} = 2$$
D
$${x \over a} + {y \over b} + {z \over c} = 2$$
4
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The equation of the plane passing through the line of intersection of the planes x + y + z = 1, 2x + 3y + 4z = 7, and perpendicular to the plane x $$-$$ 5y + 3z = 5 is given by
A
x + 2y + 3z $$-$$ 6 = 0
B
x + 2y + 3z + 6 = 0
C
3x + 4y + 5z $$-$$ 8 = 0
D
3x + 4y + 5z + 8 = 0
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