Advertisements
Advertisements
Question
State four characteristics of a standard unit.
Advertisements
Solution
Characteristics of standard unit:
- It should be of convenient size.
- It should not change with respect to place and time.
- It should be well defined.
- It should be easily reproduced.
APPEARS IN
RELATED QUESTIONS
Name two units of length which are bigger than a metre. How are they related of the metre?
What is backlash error? Why is it caused? How is it avoided?
Express the order of magnitude of the following quantity:
0.000,000,000,00027 m
Name the SI unit of mass and define it.
Name three units of length which are bigger than a meter. How are they related to the meter?
Complete the rollowing:
1 parsec= _____ ly
Which of the following is correct?
These are the instruments used in measuring the volume of objects with irregular shapes ______.
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 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.
