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प्रश्न
Answer the following in short.
What are the characteristics of a standard unit?
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उत्तर
1. It should be accepted universally.
2. It should be accurate.
3. It should be neither too small nor too big and easy to use.
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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.
A rectangular field is of length 60 m and breadth 35 m. Find the area of the field.
What is measurement? How is a measurement expressed?
Define one metre, the S.I. unit of length. State it's one multiple and one submultiple.
Convert the following quantity as indicated:
0.2 km = m
Convert the following quantity as indicated:
0.2 cm = mm
Answer the following in detail.
What are the fundamental physical quantities? Name any three fundamental physical quantities.
Answer the following in detail.
Explain in detail why there was a need to standardize units.
Solve the following numerical problem.
Amit dipped a stone tied with a string in a measuring cylinder filled with water. If the initial level of water was 56 mL and after dipping the stone the final level of water was 78 mL, find the volume of the stone.
Assertion (A): Density is a derived physical quantity
Reason (R): Density cannot be derived from the fundamental physical quantities.
