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प्रश्न
The size of bacteria is 1 µ. Find the number of bacteria present in 1 m length.
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उत्तर
Size of a bacteria = 1 µ
Since 1 µ = 10-6 m
∴ Number of the particle = Total length/size of one bacteria
= 1 m/10-6 m
= 106
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संबंधित प्रश्न
Define the term 'Vernier constant'.
Name the part of the vernier callipers which is used to measure the following
External diameter of a tube
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.
The pitch of a screw gauge is 0.5 mm and the head scale is divided in 100 parts. What is the least count of a screw gauge?
The pitch of a screw gauge is 1 mm and the circular scale has 100 divisions. In measurement of the diameter of a wire, the main scale reads 2 mm and 45th mark on the circular scale coincides with the base line. Find
(i) The least count and
(ii) The diameter of the wire.
The least count of a vernier callipers is 0.0025 cm and it has an error of + 0.0125 cm. While measuring the length of a cylinder, the reading on the main scale is 7.55 cm, and the 12th vernier scale division coincides with the main scale. Calculate the corrected length.
How do you account for negative zero error, for calculating the correct diameter of wires?
