ID: Class: 12 Subject: Math Topic: Vector Algebra Type: Mcq Year: 2024

Question:

If \(\vec{a}\) and \(\vec{b}\) are two vectors such that \(|\vec{a}|=1,|\vec{b}|=2~and\vec{a}\cdot\vec{b}=\sqrt{3}\) then the angle between \(2\vec{a}\) and \(-\vec{b}\) is:
  • A. \(\frac{\pi}{6}\)
  • B. \(\frac{\pi}{3}\)
  • C. \(\frac{5\pi}{6}\)
  • D. \(\frac{11\pi}{6}\)