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प्रश्न
Give a reason for the following.
Measurements are very important for life.
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उत्तर
We need to measure the quantities of most of the things around us to be able to take correct decisions regarding their utility. To find the exactness of an unknown quantity, we need its measurement.
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संबंधित प्रश्न
Write true or false for a given statement.
The density of water is maximum at 4°C.
Fill in the blank
l m3 =..........cm3
A car travels a distance of 15 km in 20 minute. Find the speed of the car in m s-1.
Express in second :
3 minute 15 second
Answer the following in short.
What do you understand by the term measurement?
Answer the following in detail.
Why are multiples and submultiples of SI units required?
Tick the most appropriate answer.
Which of the following weighing devices has very high accuracy and sensitivity?
Answer the following in detail.
Which is the most suitable unit for measuring the volume of a cylinder of a car engine?
Who is my companion?
| Group 'A' | Group 'B' | ||
| 1 | Velocity | a | litre |
| 2 | Area | b | kilogram |
| 3 | Volume | c | metre/second |
| 4 | Mass | d | kilogram/cubic metre |
| 5 | Density | e | square metre |
Define mass Mention its unit.
