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प्रश्न
The diameter of a thin wire can be measured by
विकल्प
A vernier calipers
A metre rule
A screw gauge
none of these
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उत्तर
The diameter of a thin wire can be measured by A screw gauge
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संबंधित प्रश्न
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
Name the two scales of a vernier callipers and explain how it is used to measure length correct up to 0.01 cm.
Describe the procedure to measure the diameter of a wire with the help of a screw gauge.
In the vernier callipers, there are 10 divisions on the vernier scale and 1 cm on the main scale is divided into 10 parts. While measuring the length, the zero of the vernier lies just ahead of the 1.8 cm mark and the 4th division of vernier coincides with a main scale division.
(a) Find the length.
(b) If zero error of vernier callipers is -0.02 cm,
What is the correct length ?
Fig., below shows the reading obtained while measuring the diameter of a wire with a screw gauge. The screw advances by 1 division on the main scale when circular head is rotated once.
Find:
(i) Pitch of the screw gauge,
(ii) Least count of the screw gauge and
(iii) The diameter of the wire.
Define metre in terms of the wavelength of light.
State the correction if the negative error is 7 divisions when the least count is 0.01 cm.
State whether the following statement is true or false by writing T/F against it.
A metre scale can measure a length of 6.346 cm.
In a vernier calliper, (N + 1) divisions of the vernier scale coincide with N divisions of the main scale. If 1 MSD represents 0.1 mm, the vernier constant (in cm) is ______.
