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JEE Main 2022 — Mathematics in Physics Question with Solution

JEE Main 2022 (26 Jul Shift 2)

Question

If A→=2i^+3j^-k^ m and B→=i^+2j^+2k^ m. The magnitude of component of vector A→ along vector B→ will be _____ m.

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Show full solutionCorrect answer: 2
Correct answer
2

Step-by-step explanation

GIven vector are A→=2i^+3j^-k^ m and B→=i^+2j^+2k^ m

Component of A→ along B→=A→·B^

=A→·B→B→=2+6-212+22+22=63=2

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About this question

This is a previous-year question from JEE Main 2022, covering the Mathematics in Physics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.