Correct option is C
Solution:
The precision of a measurement depends on the number of significant figures (not just the number of digits or format).
The more significant figures, the more precise the measurement.
Step-by-step Analysis of Options:
Option A: 125 km/s → 3 significant figures
Option B: 12.5×10 km/s = 125 km/s → also 3 significant figures
Option C: 125.00 km/s → 5 significant figures
Option D: 1.250×10² km/s = 125.0 km/s → 4 significant figures
Conclusion:
The value with the most significant figures (and thus the most precision) is:
125.00 km/s
Final Answer:
S. Ans. (C) 125.00 km/s
