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प्रश्न
State whether true or false. If false, correct the statement.
A physical balance is more sensitive than a beam balance.
विकल्प
True
False
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उत्तर
A physical balance is more sensitive than a beam balance- True
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संबंधित प्रश्न
The unit of length convenient on the nuclear scale is a fermi : 1 f = 10– 15 m. Nuclear sizes obey roughly the following empirical relation : `r = r_0A^(1/3)` where r is the radius of the nucleus, A its mass number, and r0 is a constant equal to about, 1.2 f. Show that the rule implies that nuclear mass density is nearly constant for different nuclei. Estimate the mass density of sodium nucleus. Compare it with the average mass density of a sodium atom obtained in Exercise 2.27
Fill in the blank:
The ............ of an object is measured with the help of a beam balance.
Define mass.
Fill in the blank.
The amount of matter contained in a body is known as its ...........
Name the device commonly used to measure mass.
State whether true or false. If false, correct the statement.
In everyday life, we use the term weight instead of mass.
Stop clock:: accurate time: _______:: accurate weight.
Write a short note on the following:
Digital balance
What object and material were used to define the kilogram for 130 years before 2019?
Why is carbon-12 chosen as the standard for defining the amu?
