Advertisements
Advertisements
प्रश्न
Answer the following in detail.
Explain in detail why there was a need to standardize units.
Advertisements
उत्तर
The traditional units were not uniform as the length of a cubit, foot and handspan varied from person to person according to their body size. Similarly, there was no certainty that all grains were exactly the same weight. So these units could not be used for scientific measurements where accuracy was a prime concern. The development of a large number of systems of measurement also made it very difficult to conduct trade and commerce between different societies. Therefore, people felt the need to have standard units that could be used for accurate measurement and were accepted universally.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Mass = density × _______
Convert the following quantity as indicated :
12 inch = ft
Convert the following quantity as indicated:
20 cm = m
Name the device which you will use to measure the perimeter of your playground. Describe in steps how you will use it.
Express in second :
3 minute 15 second
Answer the following in short.
Which institution in the world maintains the guidelines for using the SI units correctly?
Answer the following in detail.
Explain by giving two examples of why the measurement of a physical quantity is expressed as a combination of a numeral and a unit.
Solve the following numerical problem.
20 one – rupee coins are placed one above the other. If their total height is 32 mm, find the thickness of one coin.
Solve the following numerical problem.
A piece of wire is wound around a pencil 60 times. If the total width of all the turns is 4 cm, find the diameter of the wire.
What are the multiples and sub multiples of mass?
