Physics and MeasurementErrors in Measurement (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 18  22 of 29
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Question number: 18
» Physics and Measurement » Errors in Measurement
Question
A physical quantity A is related to four observable a, b, c and d as follows, A =
the percentage errors of measurement in a, b, c and d are 1%, 3%, 2 % and 2 % respectively. What is the percentage error in the quantity A?
Choices
Choice (4)  Response  

a.  14% 

b.  7% 

c.  5% 

d.  12% 

Question number: 19
» Physics and Measurement » Errors in Measurement
Question
The percentage errors in the measurement of mass and speed are 2 % and 3 % respectively. How much will be the maximum error in the estimation of the kinetic energy obtained by measuring mass and speed?
Choices
Choice (4)  Response  

a.  1% 

b.  5 % 

c.  8 % 

d.  11 % 

Question number: 20
» Physics and Measurement » Errors in Measurement
Question
A physical parameter a can be determined by measuring the parameters b, c, d and e using the relation a =
If the maximum errors in the measurement of b, c, d and e are b1 %, c1 %, d1 %, and e1 %, then the maximum error in the value of a determined by the experiment is
Choices
Choice (4)  Response  

a.  (b _{1} + c _{1}  d _{1 }  e _{1}) % 

b.  (b _{1} + c _{1} + d _{1 } + e _{1}) % 

c.  (b _{1} + c _{1}  d _{1}  e _{1}) % 

d.  (b_{1} + c _{1} + d_{1} + e_{1}) % 

Question number: 21
» Physics and Measurement » Errors in Measurement
Question
If L = 2.331 cm, B = 2.1 cm, then L + B =
Choices
Choice (4)  Response  

a.  4, 43 cm 

b.  4 cm 

c.  4.431 cm 

d.  4.4 cm 

Question number: 22
» Physics and Measurement » Errors in Measurement
Question
In an experiment, the following observations were recorded: L = 2.820 m, M = 3.00 kg, l = 0.087 cm, Diameter D = 0.041 cm. Taking g = 9.81 m/s2 using the formula, Y =
, the maximum percentage error in Y is
Choices
Choice (4)  Response  

a.  6.50 % 

b.  4.56 % 

c.  7.96 % 

d.  8.42 % 
