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प्रश्न
Answer the following in short.
What do you mean by a mean solar day?
उत्तर
Mean solar day is the time taken by the earth to make one complete rotation about its own axis.
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संबंधित प्रश्न
Write true or false for a given statement.
The speed 5 ms-1 is less than 25 km h-1.
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
A block of wood of density 0.8 g cm-3 has a volume of 60 cm3. The mass of block will be :
Select the correct alternative
A boy travels a distance 150 m in 1 minute. His speed is
Convert the following quantity as indicated:
0.2 cm = mm
Convert the following quantity as indicated:
10 lb = ………. kg
Express in second :
3 minute 15 second
Answer the following in short.
What do you understand by the term measurement?
Answer the following in short.
What are the characteristics of a standard unit?
Give some examples for scalar quantity.
