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प्रश्न
Give a reason for the following.
Measurements are very important for life.
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उत्तर
We need to measure the quantities of most of the things around us to be able to take correct decisions regarding their utility. To find the exactness of an unknown quantity, we need its measurement.
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संबंधित प्रश्न
Write true or false for a given statement.
The speed 5 ms-1 is less than 25 km h-1.
Convert the following quantity as indicated:
0.2 cm = mm
Answer the following in short.
What is parallax error?
Answer the following in short.
Explain the working of an extension spring balance.
Answer the following in short.
Describe any two means by which the actual capacity’ of a measuring container can be made less than the correct value by a dishonest trader.
Answer the following in detail.
When are approximations necessary in daily life and when should they be avoided?
Solve the following numerical problem.
Express 8000 g in kg?
Solve the following numerical problem.
The body temperature of a patient on Monday was102 °F and on Tuesday it was 104°F. What was the rise in temperature during these two days?
Who is my companion?
| Group 'A' | Group 'B' | ||
| 1 | Velocity | a | litre |
| 2 | Area | b | kilogram |
| 3 | Volume | c | metre/second |
| 4 | Mass | d | kilogram/cubic metre |
| 5 | Density | e | square metre |
Match the following:
| Column I | Column II | |
| 1. | FPS | Metre, kilogram, and second |
| 2. | CGS | Foot, pound, and second |
| 3. | MKS or SI | centimeter, gram, and second |
