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प्रश्न
Define metre according to the old definition.
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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
The least count of a vernier calipers is :
When a screw gauge with a least count of 0.01 mm is used to measure the diameter of a wire, the reading on the sleeve is found to be 1 mm and the reading on the thimble is found to be 27 divisions.
(i) What is the diameter of the wire in cm?
(ii) If the zero error is +0.005 cm, what is the correct diameter?
What do you understand by the following term as applied to micrometre screw gauge?
Baseline
How do you account for positive zero error for calculating the correct diameter of wires?
The Wavelength of a particular colour is 5400Å. Express it in nanometer and metre.
What is the least count in the case of the following instrument?
Thermometer
State whether true or false. If false, correct the statement.
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On a vernier calliper, 25 vernier scale divisions are equal in length to 24 main scale divisions. One main scale division is 1 mm. Find the least count of the instrument.
