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प्रश्न
Tick the most appropriate answer.
The SI unit of mass is
विकल्प
gram
milligram
kilogram
pound
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उत्तर
kilogram
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संबंधित प्रश्न
Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):
Name the instrument which is commonly used to measure the mass of a body. State how is it used?
State whether true or false. If false, correct the statement.
In everyday life, we use the term weight instead of mass.
Assertion(A): The scientifically correct expression is “ The mass of the bag is 10 kg”
Reason (R): In everyday life, we use the term weight instead of mass.
The comparison of a known quantity with the unknown quantity is the mass.
Using electronic balance weight can be measured accurately.
The unit is used to measure mass ______.
What is the standard unit of mass?
If Planck’s constant (h) and speed of light in vacuum (c) are taken as two fundamental quantities, which one of the following can, in addition, be taken to express length, mass and time in terms of the three chosen fundamental quantities?
- Mass of electron (me)
- Universal gravitational constant (G)
- Charge of electron (e)
- Mass of proton (mp)
Give an example of a constant which has a unit.
