![]() All the 4 figures in option A are significant.ġ4. Hence, option B and option C have 2 and 1 significant figures respectively. Which of the following numerical value have significant figure 4?Įxplanation:- One zero before 1 in option B and 2 zeroes before 1 in option C are non-significant. The physical quantity having the same unit in all the systems of unit isĮxplanation:- Time has same unit in all the systems i.e. To measure shorter lengths with their accurate reading we useĮxplanation:- Vernier caliper has least error and high accuracy than others.ġ0. The errors due to sudden changes in experimental conditions are calledĮxplanation:- Errors due to sudden change in experimental conditions are called random errors (as name suggests)ĩ. There are 20 divisions in 4 cm of the main scale. (C) Constant accurate (D) both (a) and (b)Įxplanation:- As error decreases, the measurement gets more and more accurate.ħ. Which of the following units is a derived unit?Įxplanation:- The unit depends on two fundamental units: meter, second.Įxplanation:- Area = Length x Length = ![]() Implies the unit of the quantity measured.Ĥ. ![]() The length of the table is 3 meter, here 3 is theĮxplanation:- In the measurement of a physical quantity, the numerical part implies the quantity and the alphabetical one Electric current, thermodynamic temperature, Amount of substance, luminous intensity are quantitiesĮxplanation:- These are the basic (fundamental) quantities that define themselvesģ. Explanation:- These are the basic (fundamental) quantities that define themselves.Ģ. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |