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ID#5756 HSC Physics 1st MCQ (Sylhet 2025)

A(3, 2, 2) এবং B(3, 2, -1) হলে AB ভেক্টরটির মান কত?
ক) 1
খ) √3
গ) 3
ঘ) 4

ব্যাখ্যা

$\vec{AB} = (3-3)\hat{i} + (2-2)\hat{j} + (-1-2)\hat{k} = -3\hat{k}$
$|\vec{AB}| = \sqrt{0^2 + 0^2 + (-3)^2} = 3$
Resource Details
Exam HSC
Subject Physics 1st paper
Chapter 2
Board Sylhet
Year 2025

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