Latus rectum of parabola y² = 4ax:
A4a (chord through focus perpendicular to axis)
B8a
Ca
D2a
Answer & Solution
Correct answer: A. 4a (chord through focus perpendicular to axis)
Latus rectum: chord through focus perpendicular to axis. For y² = 4ax: length = 4a. Endpoints: (a, ±2a). Used for problems involving focal chord properties.
Related questions
The Cassegrain telescope design uses the reflective property of a:A satellite dish uses a parabolic reflector because:By Kepler's First Law, every planet orbits the Sun in:For a general 2nd-degree equation Ax² + Bxy + Cy² + Dx + Ey + F = 0, the curve is a PARABOThe HYPERBOLA x²/a² − y²/b² = 1 has asymptotes given by:In the standard ellipse x²/a² + y²/b² = 1 (with a > b), the relationship between a, b, c (The standard form of a circle with centre (3, -2) and radius 5 is:The eccentricity of a CIRCLE is: