M.C.Q (1 Marks)

MCQ 11 Mark

Points $(5,3,2),(3,2,5)$ and $(2,5,3)$ are vertices of which of the following triangle?

A
isosceles triangle
✓
equilateral triangle
C
right angled triangle
D
None of these

Answer

Correct option: B.

equilateral triangle

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MCQ 21 Mark

The coordinates of a point which is in YZ - plane are :

A
$(x, 0, z)$
✓
$(0, y, z)$
C
$(0,0, z)$
D
$(x, y, 0)$

Answer

Correct option: B.

$(0, y, z)$

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MCQ 31 Mark

The image of point $(0,0,-4)$ in $x y$ plane is :

A
$(0,0,0)$
✓
$(0,0,4)$
C
$(0,0, \pm 4)$
D
None of these

Answer

Correct option: B.

$(0,0,4)$

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MCQ 41 Mark

If a variable point P move such that $x=a$ and $y=b$ then its locus is given by :

A
a plane parallel to XY - plane
B
a line parallel to X - axis
C
a line parallel to Y - axis
✓
a line parallel to Z- axis

Answer

Correct option: D.

a line parallel to Z- axis

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MCQ 51 Mark

Distance of point $\text {P(a, b, c )}$ from $Z-axis$ is :

A
$\sqrt{\left(b^2+c^2\right)}$
B
$\sqrt{\left(a^2+c^2\right)}$
✓
$\sqrt{\left(a^2+b^2\right)}$
D
$\sqrt{\left(a^2+b^2+c^2\right)}$

Answer

Correct option: C.

$\sqrt{\left(a^2+b^2\right)}$

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MCQ 61 Mark

The distance of point $(1,2,3)$ from $x$-axis is :

A
$\sqrt{5}$
B
$\sqrt{10}$
✓
$\sqrt{13}$
D
$1$

Answer

Correct option: C.

$\sqrt{13}$

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MCQ 71 Mark

The perpendicular distance of the point $(x, y, z)$ from the $x$-axis is :

A
$\frac{z}{\sqrt{x^2+y^2+z^2}}$
✓
$\sqrt{x^2+y^2}$
C
$1$
D
$z$

Answer

Correct option: B.

$\sqrt{x^2+y^2}$

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Maths M.C.Q (1 Marks)

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