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प्रश्न
Name three systems of unit and state various fundamental units in them.
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उत्तर
Three systems of unit are
(a) C.G.S system - fundamental unit of length is centimetre(cm), of mass is gram(gm), of time is second(s).
(b) F.P.S system- fundamental unit of length is foot(ft), of mass is pound(lb), of time is second(s).
(c) M.K.S system- fundamental unit of length is metre(m), of mass is kilogram(kg), of time is second(s).
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संबंधित प्रश्न
Complete the following: 1 quintal =………kg
Complete the following: 1 year =……….s.
State or define the following term:
An hour
Complete the rollowing:
1 micron= ____ Å
Put the symbol in the box given below.
640 g `square` 800 g
These are the instruments used in measuring the volume of objects with irregular shapes ______.
Match the following:
| 1. | Length | 1. | ampere (A) |
| 2. | time | 2. | Kelvin (K) |
| 3. | Mass | 3. | meter (M) |
| 4. | Temperature | 4. | second (S) |
| 5. | Electric current | 5. | kilogram (K) |
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.
Now answer the following question.
- 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.
