10 - Science - 14. Physics - Measuring Instruments

5 Questions | Total Attempts: 1748

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10 - Science - 14. Physics - Measuring Instruments

Prepared By Mr. S. Ravikumar, B. T. Asst. , GHS, Arangaldhurgam, Vellore District.   ; &nbs p; & www. Padasalai. Net


Questions and Answers
  • 1. 
    Screw gauge is an instrument to measure the dimensions of very small objects upto _____
    • A. 

      0.1 cm.

    • B. 

      0.01 cm.

    • C. 

      0.1 mm.

    • D. 

      0.01 mm.

  • 2. 
    In a screw gauge zero of the head scale lies below the pitch scale axis, the zero error is ______
    • A. 

      Positive

    • B. 

      Negative

    • C. 

      Nil

  • 3. 
    Screw gauge is used to measure the diameter of ______
    • A. 

      Crow bar

    • B. 

      Thin wire

    • C. 

      Cricket ball

  • 4. 
    One light year is equal to _______
    • A. 

      365.25 x 24 x 60 x 60 x 3 x 108 m

    • B. 

      1 x 24 x 60 x 60 x 3 x 108 m

    • C. 

      360 x 24 x 60 x 60 x 3 x 108 m

  • 5. 
    One astronomical unit is the distance between the centre of the earth and _____________
    • A. 

      Centre of the Moon

    • B. 

      Centre of the Sun

    • C. 

      Centre of the Mars

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