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प्रश्न
Name the device used for measuring the mass of atoms and molecules.
उत्तर
The mass spectrograph is a device that is used for measuring the mass of atoms and molecules.
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संबंधित प्रश्न
Name the instrument which is commonly used to measure the mass of a body. State how is it used?
Fill in the blank.
The amount of matter contained in a body is known as its ...........
Find the odd one out.
Which among the following is not a device to measure mass?
1 kg of rice is weighed by ______.
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.
Where are the electronic balances used?
The comparison of a known quantity with the unknown quantity is the 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.
