Which of the following conditions is satisfied by a point lying on the $z$-axis?

  • A
    The $z$-coordinate is zero.
  • B
    Both $x$ and $y$ coordinates are zero.
  • C
    Both $y$ and $z$ coordinates are zero.
  • D
    Both $x$ and $z$ coordinates are zero.

Explore More

Similar Questions

The direction ratios of the diagonal of a cube that joins the origin to the opposite corner are (when the $3$ concurrent edges of the cube are the coordinate axes):

If the direction cosines of two lines are such that $l+m+n=0$ and $l^2+m^2-n^2=0$,then the angle between them is

Find the direction cosines and the length of a vector whose projections on the coordinate axes are $6, -3, 2$.

Difficult
View Solution

The distance between two points $P$ and $Q$ is $d$ and the lengths of the projections of $PQ$ on the coordinate planes are $d_1, d_2, d_3$. Then $d_1^2 + d_2^2 + d_3^2 = k d^2$,where $k$ is:

Difficult
View Solution

If the direction cosines of two lines are such that $2l + m + 2n = 0$ and $3l^2 + 5m^2 - 11n^2 = 0$,then the angle between the two lines is

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo