ID: Class: 12 Subject: Math Topic: Vector Algebra Type: Mcq Year: 2025

Question:

Let \(\vec{p}\) and \(\vec{q}\) be two unit vectors and \(\alpha\) be the angle between them. Then \((\vec{p}+\vec{q})\) will be a unit vector for what value of \(\alpha\)?
  • A. \(\frac{\pi}{4}\)
  • B. \(\frac{\pi}{3}\)
  • C. \(\frac{\pi}{2}\)
  • D. \(\frac{2\pi}{3}\)