Mathbee CBSE Mathbee · CBSE Class 12 Maths
Class 12 Vector Algebra · Mcq Single Correct1 Marksdot_product_angle

Class 12 Maths · Vector Algebra · Mcq Single Correct #8

Given |a| = √3, |b| = 4 and a · b = 2√3, find their angle.

✅ Step-by-Step Solution

Final Answer: Option (B): π/3
  1. cos θ = 2√3/(4√3) = 1/2, so θ = π/3.

Master Chapter 10: Vector Algebra

Practise interactive questions, flashcards, visual mind maps, and timed board tests for Vector Algebra.
📘 Chapter Notes & All Exercises 🚀 Open Interactive Workspace →
← Previous Question
Find the direction cosines of BA when A = (1,2,−1), B = (3,4,0).
Next Question →
Find p if (2,p,1) and (−4,−6,26) are perpendicular.

More Practice Questions in Vector Algebra

Related Questions in Vector Algebra