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3d Geometry

JEE Advanced 2023 Paper 1 Online

MCQ+3 / -12023
Let $\ell_1$ and $\ell_2$ be the lines $\vec{r}_1=\lambda(\hat{i}+\hat{j}+\hat{k})$ and $\vec{r}_2=(\hat{j}-\hat{k})+\mu(\hat{i}+\hat{k})$, respectively. Let $X$ be the set of all the planes $H$ that contain the line $\ell_1$. For a plane $H$, let $d(H)$ denote the smallest possible distance between the points of $\ell_2$ and $H$. Let $H_0$ be a plane in $X$ for which $d\left(H_0\right)$ is the maximum value of $d(H)$ as $H$ varies over all planes in $X$.


Match each entry in List-I to the correct entries in List-II.



.tg {border-collapse:collapse;border-spacing:0;width:100%}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}
.tg .tg-1wig{font-weight:bold;text-align:left;vertical-align:top}
.tg .tg-0lax{text-align:left;vertical-align:top}






























List - I List - II
(P) The value of $d\left(H_0\right)$ is (1) $\sqrt{3}$
(Q) The distance of the point $(0,1,2)$ from $H_0$ is (2) $\frac{1}{\sqrt{3}}$
(R) The distance of origin from $H_0$ is (3) 0
(S) The distance of origin from the point of intersection of planes $y=z, x=1$ and $H_0$ is (4) $\sqrt{2}$
(5) $\frac{1}{\sqrt{2}}$


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