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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 m =……….Å
Complete the following: 1 m =……….. µ
Complete the following: 1 µs =……….s
Name the physical quantities which are measured in the given units: u
The mass of an oxygen atom is 16.0 u. Express it in kg.
Complete the rollowing:
1 u = ____ kg
Conversion of 7 m into cm gives _____
Choose the correct one
Figure shows a measuring scale which is usually supplied with a geometry box. Which of the following distance cannot be measured with this scale by using it only once?
Questions based on Higher Order Thinking Skills:
There are three spheres A, B, and 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. The density of A is double that of C.
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.
