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प्रश्न
Find the volume of a book of length 25 cm, breadth 18 cm and height 2 cm in m3.
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उत्तर
Length of book = l = 25 cm
Breadth of book = b = 18 cm
Height of book = h = 2 cm
Volume of book = l × b × h
V = 25 × 18 × 2
V = 900 cm3
V = `900/10^6"m"^3`
V = `9/10000"m"^3`
V = 0.0009 m3
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संबंधित प्रश्न
Explain the terms : Pitch .
How are they determined?
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.
(a) A vernier scale has 10 divisions. It slides over the main scale, whose pitch is 1.0 mm. If the number of divisions on the left hand of zero of the vernier scale on the main scale is 56 and the 8th vernier scale division coincides with the main scale, calculate the length in centimetres.
(b) If the above instrument has a negative error of 0.07 cm, calculate the corrected length.
What do you understand by the term zero error?
Which part of vernier callipers is used to measure the internal diameter of a hollow cylinder?
What do you understand by the following term as applied to micrometre screw gauge?
Thimble scale
State whether the following statement is true or false by writing T/F against it.
The metre scale, vernier calipers, and screw gauge are in decreasing order of least count.
