मराठी

State whether the following statement is true or false by writing T/F against it. The diameter of a wire can be measured more accurately by using vernier calipers than by a screw gauge. - Physics

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प्रश्न

State whether the following statement is true or false by writing T/F against it.

The diameter of a wire can be measured more accurately by using vernier calipers than by a screw gauge.

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर

उत्तर

False

because the accuracy is higher in case of screw gauge due to lower least count value of 0.01mm

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Vernier Callipers
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Measurement - Exercise 2 [पृष्ठ २९]

APPEARS IN

फ्रँक Physics [English] Class 9 ICSE
पाठ 1 Measurement
Exercise 2 | Q 21.1 | पृष्ठ २९

संबंधित प्रश्‍न

The wavelength of light of a particular colour is 5800 Å.
Express it in metre.


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?


State three uses of the vernier callipers.


Explain the terms : Least count of a screw gauge.
How are they determined?


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.


A pendulum completes 2 oscillations in 5 s. What is its time period? If g = 9.8 m s-2, find its length.


Figure shows the position of vernier scale while measuring the external length of a wooden cylinder.

  1. What is the length recorded by the main scale?
  2. Which reading of vernier scale coincides with the main scale?
  3. Calculate the length.

A micrometre screw gauge has a negative zero error of 8 divisions. While measuring the diameter of a wire the reading on the main scale is 3 divisions and the 24th circular scale division coincides with baseline.
If the number of divisions on the main scale are 20 to a centimetre and circular scale has 50 divisions, calculate

  1. pitch
  2. observed diameter.
  3. least count
  4. corrected diameter.

How will you measure the diameter of a wire using a screw gauge?

Consider the following case where the zero of vernier scale and the zero of the main scale are clearly seen. If L.C. of the vernier calipers is 0.01 cm, write the zero error and zero correction of the following.


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