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प्रश्न
Define standard meter.
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उत्तर
A standard metreis equal to 1650763.73 wavelengths in vacuum, of the radiation from krypton isotope of mass 86.
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संबंधित प्रश्न
State the unit in which mass is measured in S.I. system.
Name the three fundamental quantities.
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1000 g `square` 1 kg
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Closeness of two or more measured values is called as ______
Define measurement.
Questions based on Higher Order Thinking Skills:
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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. The 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.
