• # question_answer What is the difference between the following? (i) $2\cdot 5\,\times {{10}^{3}}\,g$and$2\cdot 50\,\times {{10}^{3}}g$ (ii) 160 cm and 160.0 cm.

(i) $2\cdot 5\,\times {{10}^{3}}\,g$has two significant figures while$2\cdot 50\,\times {{10}^{3}}g$ has three significant figures. Hence, $2\cdot 50\,\times {{10}^{3}}g$ represents greater accuracy than$2\cdot 5\,\times {{10}^{3}}$. (ii) 160 has three significant figures while 160.0 has four significant figures. Hence, 160.0 represents greater accuracy.