The length of the latus rectum of a parabola,whose vertex and focus are on the positive $x$-axis at a distance $R$ and $S$ $(S > R)$ respectively from the origin,is:
- A$4(S+R)$
- B$2(S-R)$
- C$4(S-R)$
- D$2(S+R)$
Explore More
Similar Questions
If tangents are drawn from the point $(-1, 2)$ to the parabola $y^2 = 4x$, what is the area of the triangle formed by the chord of contact and the tangents (in $\sqrt{2}$)?
Difficult
View SolutionThe equation of the normal to the parabola $y^2 = 4ax$ at the point $\left( \frac{a}{m^2}, \frac{2a}{m} \right)$ is:
Difficult
View SolutionFind the coordinates of the point on the parabola $y^2 = 8x$ whose focal distance is $4$.
Medium
View SolutionThe length of the chord of the parabola $y^{2}=4ax$ $(a>0)$ which passes through the vertex and makes an acute angle $\alpha$ with the axis of the parabola is
MediumWBJEE 2020
View SolutionThe equation of a tangent to the parabola $y^2 = 4ax$ making an angle $\theta$ with the $x$-axis is
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo