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प्रश्न
Answer the following in short.
What do you understand by the term ‘mass’? Name any one instrument used for weighing.
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उत्तर
The amount of matter present in an object is called it's mass. Instruments used to measure mass are beam balance, spring balance, physical balance, electronic weighing machines, etc.
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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
Define mass.
Fill in the blank.
The amount of matter contained in a body is known as its ...........
Complete the analogy.
Milk : Volume :: Vegetables :___?
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.
Amount of matter:: mass: Gravitational Pull:: ______.
Assertion (A): Mass, Length, and Time are fundamental physical quantities.
Reason (R): They are independent of each other.
Write a short note on the following:
Common (beam) balance:
Write a short note on the following:
Digital balance
