Physics and MeasurementAccuracy and Precision of Measuring Instruments (NEET Physics): Questions 1  4 of 4
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2099 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 550.00 or
Question number: 1
» Physics and Measurement » Accuracy and Precision of Measuring Instruments
Question
A wire has a mass 0.3 + 0.003g, radius 0.5 + 0.005 mm and length 6 + 0.06 cm. The maximum percentage error in the measurement of its density is
Choices
Choice (4)  Response  

a.  1  
b.  4  
c.  2  
d.  3 
Question number: 2
» Physics and Measurement » Accuracy and Precision of Measuring Instruments
Question
The number of significant figures in all the given numbers 25.12, 2009, 4.156 and l. 217 x 10  4 is
Choices
Choice (4)  Response  

a.  2  
b.  3  
c.  4  
d.  1 
Question number: 3
» Physics and Measurement » Accuracy and Precision of Measuring Instruments
Question
A student performs an experiment for determination of . The error in length is ∆ and in time T is ∆ T and n is number of times the reading is taken. The measurement of g is most accurate for
Choices
Choice (4)  Response  

a.  ∆l = 5mn, ∆ T = 0.2 sec, n = 10  
b.  ∆l = 5mn, ∆T = 0.2 sec, n = 20  
c.  ∆l = 5mn, ∆T = 0.1 sec, n = 10  
d.  ∆l = 1mn, ∆T = 0.1 sec, n = 50 
Question number: 4
» Physics and Measurement » Accuracy and Precision of Measuring Instruments
Question
If h be the elevation or depression of a spherical surface from the plane glass plate and o be the mean distance between two consecutive points corresponding to the impressions made by the three legs of a spherometer then the radius of curvature is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
