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प्रश्न
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उत्तर
Two limitations of metre rule
(a). There comes an error of parallax due to the thickness of the metre rule.
(b). We cannot use metre rule for measuring small thickness.
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संबंधित प्रश्न
Define the least count of vernier callipers. How do you determine it?
Draw a neat and labelled diagram of a vernier callipers. Name its main parts and state their functions.
A vernier callipers has its main scale graduated in mm and 10 divisions on its vernier scale are equal in length to 9 mm. When the two jaws are in contact, the zero of the vernier scale is ahead of the zero of the main scale and the 3rd division of the vernier
scale coincides with a main scale division.
Find : (i) The least count and
(ii) The zero error of the vernier callipers.
A pendulum completes 2 oscillations in 5 s. What is its time period? If g = 9.8 m s-2, find its length.
Define metre according to the old definition.
Which part of vernier callipers is used to measure the internal diameter of a hollow cylinder?
What do you understand by the following term as applied to micrometre screw gauge?
Thimble scale
Explain the term least count of a screw gauge. How are they determined?
Define the least count of an instrument.
What is the zero error of a screw gauge?
