Question: Given the numbers : 161cm, 0.161cm, 0.0161 cm. The number of significant figures for the three numbers are [CBSE PMT 1998]
(a) 3, 4 and 5 respectively
(b) 3, 3 and 3 respectively
(c) 3, 3 and 4 respectively
(d) 3, 4 and 4 respectively
Correct Answer: (b) 3, 3 and 3 respectively