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Vector Algebra question

2024 · 31 Jan · Shift 1 · Q39
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  5. /2024 · 31 Jan · Shift 1 · Q39

Vector Algebra question

2024 · 31 Jan · Shift 1 · Q39

JEE MainMathematicsVector AlgebraMCQ+4 / −1
Let a⃗=3i^+j^−2k^,b⃗=4i^+j^+7k^\vec{a}=3 \hat{i}+\hat{j}-2 \hat{k}, \vec{b}=4 \hat{i}+\hat{j}+7 \hat{k}a=3i^+j^​−2k^,b=4i^+j^​+7k^ and c⃗=i^−3j^+4k^\vec{c}=\hat{i}-3 \hat{j}+4 \hat{k}c=i^−3j^​+4k^ be three vectors. If a vectors p⃗\vec{p}p​ satisfies p⃗×b⃗=c⃗×b⃗\vec{p} \times \vec{b}=\vec{c} \times \vec{b}p​×b=c×b and p⃗⋅a⃗=0\vec{p} \cdot \vec{a}=0p​⋅a=0, then p⃗⋅(i^−j^−k^)\vec{p} \cdot(\hat{i}-\hat{j}-\hat{k})p​⋅(i^−j^​−k^) is equal to
  1. A
    24
  2. B
    32
  3. C
    36
  4. D
    28
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