Asked in ETEA MDCAT 2011 2011Moderate

Axis equal to:

Correct answer: B. Zero

  • A. 4
  • B. Zero
  • C. 2
  • D. 1

Explanation

From the given diagram: i x j= k j x k= i k x i= j j x i = -k k x j= -i i x k= -j Now to solve the given expression, k x j= -i so j x -i = 0 , since these two vectors are perpendicular and the dot product of two perpendicular vectors is 0.

Last updated

About Vector Product

The vector product, or cross product, gives a vector perpendicular to two multiplying vectors, with magnitude AB sin θ and direction set by the right-hand rule. It covers properties such as anti-commutation, area from cross products, torque and angular momentum. Unlike the dot product, its result is a vector.

Practise Vectors and Equilibrium

431 free Vectors and Equilibrium MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Physics questions like this

Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions