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प्रश्न
Express unified atomic mass unit in kg.
उत्तर
The unified atomic mass unit is the standard unit that is used for indicating mass on an atomic or molecular scale (atomic mass). One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. It is defined as one-twelfth of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state.
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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?
Answer the following in short.
What do you understand by the term ‘mass’? Name any one instrument used for weighing.
We can say that mass of an object is 126 kg.
State whether true or false. If false, correct the statement.
A physical balance is more sensitive than a beam balance.
The moon’s gravitational pull is one ______ of the earth’s pull.
Mass is a ______ quantity.
Write a short note on the following:
Common (beam) balance:
Write a short note on the following:
Spring balance:
Name the device used for measuring the mass of atoms and molecules.
