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प्रश्न
Which among the following is not a device to measure mass?
विकल्प
Spring balance
Beam balance
Physical balance
Digital balance
उत्तर
Spring balance
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संबंधित प्रश्न
Define one kilogram, the S.I. unit of mass.
Answer the following in short.
What do you understand by the term ‘mass’? Name any one instrument used for weighing.
Tick the most appropriate answer.
Which of the following devices is used to measure mass?
Name the device commonly used to measure weight of a body.
______ is used to measure mass.
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Stop clock:: accurate time: _______:: accurate weight.
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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.
