2. Questions Bank
  3. 11th Class
  4. Physics
  5. Motion in a Straight Line / सरल रेखा में गति

11th Class Physics Motion in a Straight Line / सरल रेखा में गति Question Bank Motion In A Plane Conceptual Problems

  • question_answer
    Under what condition will the equality: \[|\vec{A}\times \vec{B}|=\vec{A}.\vec{B}\] hold good?

    Answer:

                    As \[|\vec{A}\times \vec{B}|=\vec{A}.\vec{B}\]                 \[\therefore \]  \[AB\sin \theta =AB\cos \theta \] or \[\tan \theta =1\]                 \[\Rightarrow \]\[\theta ={{45}^{\circ }}.\]


You need to login to perform this action.
You will be redirected in 3 sec spinner