Physics-
General
Easy

Question

Consider a vector stack F with rightwards arrow on top equals 4 stack i with hat on top minus 3 stack j with hat on top. Another vector that is perpendicular to stack F with rightwards arrow on top is

  1. 4 stack i with hat on top plus 3 stack j with hat on top    
  2. 6stack j with hat on top    
  3. 7stack j with hat on top    
  4. 3 stack i with hat on top minus 4 stack j with hat on top    

The correct answer is: 6stack j with hat on top


    Since stack F with rightwards arrow on top equals 4 stack i with hat on top minus 3 stack j with hat on top is lying in X minus Y plane, hence the vector perpendicular to stack F with rightwards arrow on top must be lying perpendicular toX minus Y plane i e comma along Z-axis.

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