Physics and Measurement (NEST (National Entrance Screening Test) Physics): Questions 4  5 of 5
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Question number: 4
» Physics and Measurement » Dimensions of Physical Quantities
Appeared in Year: 2009
Question
A physical quantity is expected to behave, according to theory, as , where are unknown positive constants. Measurements are made for for a number of values of , including . The best way to proceed to verify the relation and to determine and is –
Choices
Choice (4)  Response  

a.  To plot vs . Employ the relation for some . Take the average value of . 

b.  To plot vs . Slope will give . 

c.  To find for each measurement. Plot vs and fit it to a straight line. Slope of the line will give and intercept will give . 

d.  To plot vs for various values of till we get a straight line graph. Then the slope of the line gives . 

Question number: 5
» Physics and Measurement » Dimensional Analysis and Its Applications
Appeared in Year: 2014
Question
The dimensions of charge can be written in terms of length , energy , temperature , and permittivity of free space as . Here,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

