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प्रश्न
Define metre according to the old definition.
उत्तर
One metre is defined as the one ten-millionth part of distance from the pole to the equator.
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संबंधित प्रश्न
Explain the terms : Pitch .
How are they determined?
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.
State the formula for calculating length if:
Number of vernier scale division coinciding with the main scale and number of division of main scale on the left-hand side of zero of vernier scale is known.
The circular scale of a screw gauge has 50 divisions. Its spindle moves by 2 mm on the sleeve, when given four complete rotations calculate
- pitch
- least count
What do you understand by the following term as applied to micrometre screw gauge?
Sleeve cylinder
How do you account for negative zero error, for calculating the correct diameter of wires?
A vernier caliper using the scale invented by Galileo.
