Q70.Axis of a parabola lies along ๐ฅ-axis. If its vertex and focus are at distances 2 and 4 respectively from the origin, on the positive ๐ฅ-axis then which of following points does not lie on it? (1) 6, 4โ2 (2) 5, 2โ6 (3) 8, 6 (4) 4, - 4
What This Question Tests
The question requires forming the equation of a parabola given its vertex and focus, and then checking which of the given points does not satisfy this equation.
Concepts Tested
Formulas Used
(y-k)ยฒ = 4a(x-h) for parabola along x-axis
๐ NCERT Sections This Tests
6.11 โ Dynamics Of Rotational
Physics Class 11 ยท Chapter 6
6.11 Dynamics of rotational the motion of extended bodies. motion about a fixed axis A large class of problems with extended bodies can be
10.2 โ What Is The Shape Of The Wavefront In Each Of The Following Cases:
Physics Class 12 ยท Chapter 10
10.2 What is the shape of the wavefront in each of the following cases: (a) Light diverging from a point source. (b) Light emerging out of a convex lens when a point source is placed at its focus. (c) The portion of the wavefront of light from a distant star intercepted by the Earth.
2.3 โ Two Charges 2 Mc And โ2 Mc Are Placed At Points A And B 6 Cm
Physics Class 11 ยท Chapter 2
2.3 Two charges 2 mC and โ2 mC are placed at points A and B 6 cm apart. (a) Identify an equipotential surface of the system. (b) What is the direction of the electric field at every point on this surface?
๐ Question Details
- Chapter
- Parabola
- Topic
- Equation of parabola and points on it
- Year
- 2019
- Shift
- 09 Jan Shift 1
- Q Number
- Q70
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 11: Conic Sections
More from this Chapter
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Q70.Statement 1: y = mx โ m1 is always a tangent to the parabola, y2 = โ4x for all non-zero values of m. Statement 2: Every tangent to the parabola, y2 = โ4x will meet its axis at a point whose abscissa is non- negative. (1) Statement 1 is true, Statement 2 is true; Statement 2 is a correct explanation of Statement 1. (2) Statement 1 is false, Statement 2 is true. (3) Statement 1 is true, Statement 2 is false. (4) Statement 1 is true, Statement 2 is true, Statement 2 is not a correct explanation of Statement 1.