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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.
पर्याय
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
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Tick the most appropriate answer.
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Name the device commonly used to measure mass.
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The moon’s gravitational pull is one ______ of the earth’s pull.
Assertion (A): Mass, Length, and Time are fundamental physical quantities.
Reason (R): They are independent of each other.
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