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प्रश्न
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उत्तर
Measurement is an act or the result of a comparison of a quantity whose magnitude is unknown with a predefined standard.
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संबंधित प्रश्न
The year 2020 will have February of 29 days'. Is this statement true?
Amongst the various physical measurements recorded in an experiment, which physical measurement determines the degree of accuracy?
What do you understand by the term dependent variable?
Name the three fundamental quantities.
Express light year in terms of meter.
Arrange the following in correct sequence.
1L, 100 cc, 10 L, 10 cc
Match the events related to motion in Column I with the types of motions given in Column II.
| Column I | Column II | ||
| (a) | A moving wheel of a sewing machine |
(i) | Circular motion |
| (b) | Movement of tip of the minute hand of a clock in one hour |
(ii) | Rotational motion |
| (c) | A moving swing | (iii) | Periodic motion |
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. 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.
