Exams › JEE Main › Maths
Statement-1: The point A(3,1,6) is the mirror image of the point B(1,3,4) in the plane x − y + z = 5. Statement-2: The plane x − y + z = 5 bisects the line segment joining A(3,1,6) and B(1,3,4).
- Statement-1 is true, Statement-2 is true; Statement-2 is the correct explanation for Statement-1
- Statement-1 is true, Statement-2 is false
- Statement-1 is false, Statement-2 is true
- Statement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation for Statement-1
Correct answer: Statement-1 is true, Statement-2 is true; Statement-2 is the correct explanation for Statement-1
Solution
Statement-1 is correct because the coordinates of point A are indeed the mirror image of point B with respect to the given plane. Statement-2 is also true as the plane bisects the line segment joining A and B, confirming that A is the reflection of B across the plane.
Related JEE Main Maths questions
- A line makes equal angles \(\alpha\), \(\beta\), and \(\gamma\) with the positive directions of the coordinate axes. If \(\theta\) satisfies \[ \cos\theta=\frac{\cos^2\alpha+\cos^2\beta+\cos^2\gamma}{\sin^2\alpha+\sin^2\beta+\sin^2\gamma}, \] then what is the value of \(\theta\)?
- Consider the following two statements: Statement 1: If \(A\), \(B\), and \(C\) are points with position vectors \(\mathbf{a}=2\hat{i}+\hat{j}+\hat{k}\), \(\mathbf{b}=3\hat{i}-\hat{j}+3\hat{k}\), and \(\mathbf{c}=\hat{i}+7\hat{j}-5\hat{k}\), then the figure \(OABC\) forms a tetrahedron. Statement 2: If the position vectors \(\mathbf{a}\), \(\mathbf{b}\), and \(\mathbf{c}\) of points \(A\), \(B\), and \(C\) are non-coplanar, then \(OABC\) is a tetrahedron, where \(O\) denotes the origin. Choose the correct option.
- Find the locus of a point whose sum of the squares of its perpendicular distances from the planes \(x+y+z=0\), \(x-z=0\), and \(x-2y+z=0\) equals 19.
- A moving plane always contains the fixed point \((1,2,3)\). The set of points that are the perpendicular projections of the origin onto this plane is described by
- The direction cosines \(l,m,n\) of one of the two lines satisfying the relations \(l-5m+3n=0\) and \(7l^2+5m^2-3n^2=0\) are
- A sphere is given by the equation \(x^2+y^2+z^2-10z=0\). If one endpoint of a diameter is \((-3,4,5)\), then what are the coordinates of the opposite endpoint?
⚔️ Practice JEE Main Maths free + battle 1v1 →