Physical Quantities and Measurement

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1. Which of following prefix represents a largest value?

 
 
 
 

2. The number of significant figures in 0.00650 s are:

 
 
 
 

3. Which one of the following unit is not a derived unit?

 
 
 
 

4. Ratio of millimetre to micrometre is:

 
 
 
 

5. 9.483 x 10³ m is the standard form of:

 
 
 
 

6. The numbers having one significant digit is:

 
 
 
 

7. 0.2 mm in units of meters is:

 
 
 
 

8. Micrometer can be used to measure:

 
 
 
 

9. The instrument best measures the internal diameter of a pipe is:

 
 
 
 

10. Least count of screw gauge is 0.01 mm. If main scale reading of screw gauge is zero and third line of its circular scale coincides with datum line then the measurement on the screw gauge is:

 
 
 
 

11. Which of the following numbers show 4 significant digits?

 
 
 
 

12. Amount of a substance in terms of numbers is measured in:

 
 
 
 

13. Which of the following is a base unit?

 
 
 
 

Question 1 of 13

 

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