NCERT Exercise 1.4 - Units and Measurements
Question: Explain this statement clearly: 'To call a dimensional quantity "large" or "small" is meaningless without specifying a standard for comparison.' In view of this, reframe the following statements wherever necessary: (a) atoms are very small objects (b) a jet plane moves with great speed (c) the mass of Jupiter is very large (d) the air inside this room contains a large number of molecules (e) a proton is much more massive than an electron (f) the speed of sound is much smaller than the speed o...
Answer: Statements (a)–(d) need explicit reference standards, while (e) and (f) are already properly reframed relative comparisons.
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