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प्रश्न
Answer the following in short.
Explain the working of an extension spring balance.
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उत्तर
When a body to be weighed is attached to the hook, the coil is stretched downwards. The distance through which the spring gets stretched is measured by a pointer and a graduated scale attached to the spring. The reading on the scale gives the weight of the object.
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संबंधित प्रश्न
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 correct relation is :
Convert the following quantity as indicated:
0.2 cm = mm
Convert the following quantity as indicated:
2500 kg = ………. metric tonne.
Write the temperature of melting ice.
State if the following statement is true or false:
There are seven base units in the SI system.
State if the following statement is true or false:
Centi mean a hundredth part.
Tick the most appropriate answer.
Which of the following is a fundamental physical quantity?
Answer the following in detail.
Which is the most suitable unit for measuring the volume of the swimming pool?
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 |
