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A vector is rotated by an angle θ  then, here θ is less than 180°.
  • a)
    Magnitude of change is zero
  • b)
    Change in magnitude is zero
  • c)
    Both a and b are correct
  • d)
    Both a and b are wrong
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A vector is rotated by an angle θ then, here θ is less tha...
Ans :- b
When we rotate a vector its magnitude does not change so change in magnitude is zero , but if we talk about magnitude of change in that case its value is 2V sin θ/2 , which is non zero in this case.
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A vector is rotated by an angle θ then, here θ is less than 180°.a)Magnitude of change is zerob)Change in magnitude is zeroc)Both a and b are correctd)Both a and b are wrongCorrect answer is option 'B'. Can you explain this answer?
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