Measurement questions | form five Physics

(5497) Question Category: Mathematical Calculation

An experiment was done to find the acceleration due to gravity by using the formula T=2pi sqrt{frac{l}{g}}, where all symbols carry their usual meaning, If the clock loses 3 seconds in 5 minutes, determine the error in measuring ‘g’, given that, ​T = 2.22sec, ​l =121.6​cm , Delta T_{1}=0.1sec and Delta l = pm 0.05. ​

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(5498) Question Category: Short answers

What is the importance of dimensional analysis in spite of its drawbacks?

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(5499) Question Category: Mathematical Calculation

The following measurements were taken by a student for the length of a piece of rod:
21.02, 20.99, 20.92, 21.11 and 20.69. Basing on error analysis find the true value of the length of a piece of rod and its associated error.

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(5500) Question Category: Short answers

What is the difference between degree of accuracy and precision.

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(5501) Question Category: Mathematical Calculation

In an experiment to determine Young`s modulus of a wooden material the following measurements were recorded.

length l=80.0 pm 0.05 cm

breadth b=28.65 pm 0.03 mm

thickness t=6.40 pm 0.03 mm and

slope G=0.035 pm 0.001 ,cmgm^{-1}

Given that Young`s modulus Y is given by Y=frac{4}{Gb}left (frac{l}{t} ight )^{3}

Calculate the maximum percentage error in the value of Y.

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UNSOLVED

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