Solved papers for JEE Main & Advanced AIEEE Solved Paper-2009

done AIEEE Solved Paper-2009 Total Questions - 1

• question_answer1) In an experiment the angles are required to be measured using an instrument. 29 divisions of the main scale exactly coincide with the 30 divisions of the vernier scale. If the smallest division of the main scale is half-a-degree \[(=0.5{}^\text{o}),\]then the least count of the instrument is:
  A)
  one minute       
  done clear
  B)
         half minute        
  done clear
  C)
         one degree       
  done clear
  D)
         half degree.
  done clear
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