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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
Fill in the blank
Mass = density × _______
Select the correct alternative
The correct relation is :
Select the correct alternative
The correct relation for speed is
Define the term density of a substance.
Define one metre, the S.I. unit of length. State it's one multiple and one submultiple.
Convert the following quantity as indicated:
4.2 m = cm
State if the following statement is true or false:
The symbol used for a unit is always written in capital letters.
Answer the following in detail.
Which is the most suitable unit for measuring the volume of air inside an inflated balloon?
Solve the following numerical problem.
The rainfall in a city on each day of a week is recorded below. Find the average rainfall for the week.
| day | Mon | Tue | Wed | Thurs | Fri | Sat | Sun |
|
Rainfall |
1.2 | 10.3 | 5.5 | 0.0 | 13.5 | 7.0 | 1.0 |
What do you mean by ‘unit’?
