Question

The measurement involving counting of whole numbers of identifiable objects are known accurately. But scientific measurements involving measuring devices cannot be known accurately. Accuracy is related to the way the measurement is done. If the average value of different measurements is close to the correct value, then it is said to be accurate. All measured quantities are reported in a manner that only the last digit is uncertain. The total number of digits in a number including the last digit whose value is uncertain is called the number of significant figures. i) The number of significant numbers in 5.000g is a. 1 b. 2 c. 3 d. 4 ii) The product of (5.7 x 106) and (4.2 x 10-3) having 3 significant figures a 23.94 x 109 b. 23.9 x 103 c. 23.94 x 103 d. 239 x 103 iii) The precise and accurate measurements of length of a room whose actual length is 10.5m a. 10.4, 10.5, 10.6m b. 10.1, 10.3, 10.7m c. 10.3, 10, 10.7m d. 10, 10.1, 10.2m.​

Answer 1

Answer:

BLA

Explanation:

BLA BAL BLA