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प्रश्न
Three students measured the length of a corridor and reported their measurements. The values of their measurements were different. What could be the reason for difference in their measurements? (Mention any three)
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उत्तर
Some of the reasons for difference in their measurement could be:
- Different measuring devices were used.
- The smallest length that could be measured by different devices may be different.
- Measurement may not be along the shortest length in all three cases.
- The end of the corridor may not be easily accessible.
- The measuring devices may be faulty (not standardised).
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संबंधित प्रश्न
Name the physical quantities which are measured in the given units:-
ns
State four characteristics of a standard unit.
Express the order of magnitude of the following quantity:
12578935 m
What are the fundamental units in SI system? Name them along with their symbols.
Put the symbol in the box given below.
50 g `square` 340 g
5 km = ______ m.
What are the two parts present in a measurement?
Define measurement.
Questions based on Higher Order Thinking Skills:
|
There are three spheres A, B, C as shown below. Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.
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Now answer the following questions:
- Find the ratio of masses of spheres A and B.
- Find the ratio of volumes of spheres A and B.
- Find the ratio of masses of spheres A and C.
Define measurement.
