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प्रश्न
Match the following column:
| Column A | Column B |
| (a) Length of a housing plot | (1) Clock |
| (b) Breadth of a book | (2) Beam balance |
| (c) Mass of an apple | (3) Thermometer |
| (d) Period of time for study | (4) Measuring tape |
| (e) Temperature of a body | (5) Graph paper |
| (f) Surface area of a leaf | (6) Metre ruler |
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उत्तर
| Column A | Column B |
| (a) Length of a housing plot | (4) Measuring tape |
| (b) Breadth of a book | (6) Metre ruler |
| (c) Mass of an apple | (2) Beam balance |
| (d) Period of time for study | (1) Clock |
| (e) Temperature of a body | (3) Thermometer |
| (f) Surface area of a leaf | (5) Graph paper |
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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
Tick the most appropriate answer.
The SI unit of mass is
Answer the following in short.
What do you understand by the term ‘mass’? Name any one instrument used for weighing.
Answer the following in short.
Explain the working of a beam balance.
Fill in the blank.
The amount of matter contained in a body is known as its ...........
1 metric ton is equal to ______.
The moon’s gravitational pull is one ______ of the earth’s pull.
On the moon, the gravitational force is greater than on earth.
Mass:: Balance: Length:: ______.
The comparison of a known quantity with the unknown quantity is the mass.
