science
Grade-11
Easy

Question

When cosϴ= 0, then the vectors are

  1. Co-planar
  2. Non-planar
  3. Orthogonal
  4. Parallel

hintHint:

theta equals cos to the power of negative 1 end exponent left parenthesis 0 right parenthesis
s o space theta equals 90

The correct answer is: Orthogonal


    • Given ,cos theta equals 0
    •  theta equals cos to the power of negative 1 end exponent left parenthesis 0 right parenthesis
s o space theta equals 90
    • Hence angle between them is 90 degree. 
    • So ORTHOGONAL is the answer.

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