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प्रश्न
State if the following statement is true or false. Correct the statement if it is false.
The average of a group of observations is calculated by adding all the observations and dividing the sum by the number of observations.
पर्याय
True
False
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उत्तर
True.
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संबंधित प्रश्न
Fill in the blank
1 g cm-3 = _______ kg m-3.
Match the following:
| Column A | Column B |
| 1.Volume of a liquid | 1. kg `m^-3` |
| 2. Area of a leaf | 2. `m^3` |
| 3. S.I. unit of volume | 3. graph paper |
| 4. S.I. unit of density | 4. m `s^-1` |
| 5. S.I.unit of speed | 5. measuring cylinder |
Select the correct alternative
The density of aluminium is 2.7 g cm-3 and of brass is 8.4 g cm-3. For the same mass, the volume of:
How long a train will take to travel a distance of 200 km with a speed of 60 km h-1 ?
A boy travels with a speed of 10 m s-1 for 30 minute. How much distance does he travel ?
Express 15 m s-1 in km h-1.
Define one metre, the S.I. unit of length. State it's one multiple and one submultiple.
Convert the following quantity as indicated:
0.01 kg = ………. g
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.
Write SI units for the fundamental quantity.
