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A physical quantity P is related to four observables a, b, c and d as follows:
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|
1
|
5736
|
August 16, 2016
|
|
Deduce the dimensional formula for R, using ideal gas equation PV = nRT
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0
|
10551
|
August 16, 2016
|
|
The length and breadth of a rectangle are measured as (a ± Aa) and (b ± Ab) respectively. Find : (i) relative error, (ii) absolute error in the measurement of area
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0
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6005
|
August 16, 2016
|
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Percentage error is the measurement of height and radius of cylinder are x and y respectively
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1
|
8267
|
August 16, 2016
|
|
A physical quantity X is connected from X = a${{b}^{2}}$/C. Calculate percentage error in X, when % error in a, b, c are 4,2 and 3 respectively
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0
|
1361
|
August 16, 2016
|
|
Which of the following measurement is more accurate and why?
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1
|
3065
|
August 16, 2016
|
|
Two quantities A and B have different dimensions
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|
1
|
1526
|
August 16, 2016
|
|
What are the dimensions of velocity gradient?
|
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0
|
1152
|
August 16, 2016
|
|
What is dimensional equation?
|
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0
|
1135
|
August 16, 2016
|
|
A quantity has dimensions. Is it must that it has units also?
|
|
0
|
682
|
August 16, 2016
|
|
Can a quantity have units but no dimensions?
|
|
0
|
1867
|
August 16, 2016
|
|
What is dimensional formula?
|
|
0
|
1339
|
August 16, 2016
|
|
Give the maximum no. of dimensions of base quantities used in mechanics to represent all the physical quantities
|
|
0
|
408
|
August 16, 2016
|
|
What is understood by dimensions?
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|
0
|
525
|
August 16, 2016
|
|
The mean diameter of a thin brass rod is to be measured by Vernier callipers. Why 100 observations should be preferred over to measurements?
|
|
0
|
562
|
August 16, 2016
|
|
How can the random errors be minimised?
|
|
0
|
1196
|
August 15, 2016
|
|
What is zero error?
|
|
0
|
3591
|
August 15, 2016
|
|
What is calibration error?
|
|
0
|
748
|
August 15, 2016
|
|
Define the Accuracy
|
|
0
|
505
|
August 15, 2016
|
|
What is meant by error?
|
|
0
|
827
|
August 15, 2016
|
|
Define the Precision
|
|
0
|
714
|
August 15, 2016
|
|
Which are the main types of errors in a physical measurement?
|
|
0
|
463
|
August 15, 2016
|
|
What is the role of power (index) of a measurable in the formula used for calculations for a quantity in regard to the error in the quantity as determined in the given experiment?
|
|
0
|
473
|
August 15, 2016
|
|
State the principle of homogeneity of dimensions?
|
|
0
|
5299
|
August 15, 2016
|
|
Will the dimensions of a physical quantity be same, what even be the units in which it is measured? Why?
|
|
0
|
436
|
August 15, 2016
|
|
Write the dimensions of (i) Gravitational constant, (ii) Planck's constant, (iii) Torque, (iv) Surface tension, (v) Angular momentum
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|
0
|
1749
|
August 15, 2016
|
|
Name at least two quantities each whose dimensions are
|
|
1
|
446
|
August 15, 2016
|
|
The density of a cube is calculated by measuring the length of its one side and its mass. If the maximum errors in the measurement of mass and length are 3% and 2% respectively, then what is the maximum possible error in the measurement of density?
|
|
0
|
5214
|
August 15, 2016
|
|
A research worker takes 100 careful readings in an experiment If he repeats the same experiment by taking 400 readings, then by what factor will the probable error be reduced?
|
|
0
|
2886
|
August 15, 2016
|
|
Write the dimensional formula of wave-length and frequency of a wave?
|
|
0
|
2467
|
August 15, 2016
|