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प्रश्न
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उत्तर
Two types of errors in measurement are
(a). Random errors-these errors are due to various factors. In a number of observations, we get different readings every time.
These errors can be minimized by making observations a large number of times and taking the arithmetic mean of the readings.
(b). Gross error- these errors are due to the carelessness of the observer like parallax, improper setting of the instrument.
These errors can be minimized only when the observer is careful in setting up of instrument and taking readings.
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संबंधित प्रश्न
Name the instrument which has the least count
1 mm
How does the time period (T) of a simple pendulum depend on its length (l)? Draw a graph showing the variation of T2 with l. How will you use this graph to determine the value of g (acceleration due to gravity)?
A seconds pendulum is taken to a place where acceleration due to the gravity falls to one-fourth. How is the time period of the pendulum affected, if at all? Give reasons. What will be its new time period?
Name the convenient unit you will use to measure:
distance between the two cities.
Name the most convenient unit of mass you will use to measure:
The bag of sugar
What do you understand by the term degree of accuracy?
Explain the method in steps to find the volume of an irregular solid with the help of a measuring cylinder.
Amongst the unit of volume which is most suitable for measuring:
Volume of an exercise book
Is there any difference in the following measurements?
(a) 51.7 cm
(b) 51.70 cm
(c) 51.700 cm.
Explain your answer.
Which measurement is most accurate?
