What are two different ways to classify matter?
Solution 8E: Given in the question Length = 5.30 cm Height = 1.25 cm Breadth = 2.5 cm From the relationship between length , breadth and height is given below V olume = length x Height x breadth = 5.30 cm x 1.25 cm x 2.5 cm = 16.5625 cm 3 According to the rule of significant figures, For multiplication of significant figures, results contains the same number of significant figures as the measurement with the fewest significant figures. Therefore, from the values of length , breadth and height, only breadth has two significant figures. So volume must have only two significant figures. 3 3 Thus, volume of the metal bar will be 16.5625 cm = 17 cm , This is because, the leftmost number is higher than 5 , so the preceding will be increased by 1. (b) ass of the bar is 104.72 g 3 Volume of the bar is obtained as 17 cm , Density = Mass/volume = 104.72g/17cm , 3 3 = 6.16 g/cm ,