Last Updated on Jan 3, 2016
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Quiz Description :
Name: Accuracy in Measurement
Subject: Physics
Topic: Accuracy in Measurement
Questions: 15 Objective Type
Time Allowed: 10 Minutes
Important for: IIT JEE, UPSEE, WBJEE Engineering Entrance exams, AIPMT and other PMT entrance test, +2 school students and B. Sc. / M. Sc. College Students.
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Question 1 of 15
1. Question
1 pointsThe accuracy of an observation, made with an instrument, depends upon
Correct
We know that the accuracy of an observation, made with an instrument, depends upon the instrument as well as skill and care taken during the observation.
Incorrect
We know that the accuracy of an observation, made with an instrument, depends upon the instrument as well as skill and care taken during the observation.
Unattempted
We know that the accuracy of an observation, made with an instrument, depends upon the instrument as well as skill and care taken during the observation.
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Question 2 of 15
2. Question
1 pointsThe authenticity of an observation, made from an instrument depends upon its
Correct
We know that authenticity of an observation made from an instrument depends upon its accuracy. The accuracy of an instrument depends upon the quality of its components and maintenance.
Incorrect
We know that authenticity of an observation made from an instrument depends upon its accuracy. The accuracy of an instrument depends upon the quality of its components and maintenance.
Unattempted
We know that authenticity of an observation made from an instrument depends upon its accuracy. The accuracy of an instrument depends upon the quality of its components and maintenance.
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Question 3 of 15
3. Question
1 pointsFor measuring radius accurately of a thin wire, we use
Correct
We know that screw gauge is used for accurately measuring the radius of a thin wire or any other small object.
Incorrect
We know that screw gauge is used for accurately measuring the radius of a thin wire or any other small object.
Unattempted
We know that screw gauge is used for accurately measuring the radius of a thin wire or any other small object.
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Question 4 of 15
4. Question
1 pointsIf we get more number of observation readings, for a practical, then the accuracy of the observation is
Correct
We know that if we get more number of observation readings, for a practical, we get more accuracy. This method is generally adopted when we need very accurate results.
Incorrect
We know that if we get more number of observation readings, for a practical, we get more accuracy. This method is generally adopted when we need very accurate results.
Unattempted
We know that if we get more number of observation readings, for a practical, we get more accuracy. This method is generally adopted when we need very accurate results.
-
Question 5 of 15
5. Question
1 pointsThe accuracy of measurement is determined by
Correct
We know that accuracy of measurement is determined by the percentage error. But absolute and random errors increase with an increase in the magnitude of quantity.
Incorrect
We know that accuracy of measurement is determined by the percentage error. But absolute and random errors increase with an increase in the magnitude of quantity.
Unattempted
We know that accuracy of measurement is determined by the percentage error. But absolute and random errors increase with an increase in the magnitude of quantity.
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Question 6 of 15
6. Question
1 pointsMeasurement of current will be more accurate, when it is measured by
Correct
We know that the measurement of current will be more accurate, when it is measured by milliammeter, because it will measure even a very small value of current.
Incorrect
We know that the measurement of current will be more accurate, when it is measured by milliammeter, because it will measure even a very small value of current.
Unattempted
We know that the measurement of current will be more accurate, when it is measured by milliammeter, because it will measure even a very small value of current.
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Question 7 of 15
7. Question
1 pointsA student measured the diameter of a wire using a screw gauge with least count 0.001 and listed some measurements. The most correct measurement is
Correct
Given: Least count of screw gauge = 0.001.
We know that as the least count of the screw gauge is 0.001, therefore the measurement is correct upto the third place of decimal.
Thus the most correct measurement is 5.320 cm.Incorrect
Given: Least count of screw gauge = 0.001.
We know that as the least count of the screw gauge is 0.001, therefore the measurement is correct upto the third place of decimal.
Thus the most correct measurement is 5.320 cm.Unattempted
Given: Least count of screw gauge = 0.001.
We know that as the least count of the screw gauge is 0.001, therefore the measurement is correct upto the third place of decimal.
Thus the most correct measurement is 5.320 cm. -
Question 8 of 15
8. Question
1 pointsA scientist measured acceleration due to gravity using an apparatus with least count 0.0001 and listed the measurements. The most correct measurement is
Correct
Given: Least count of measurement = 0.0001.
We know that as the least count of the apparatus is 0.0001, therefore the measurement is correct upto the fourth place of decimal.
Thus the most accurate measurement is 9.8132 m-s-2.Incorrect
Given: Least count of measurement = 0.0001.
We know that as the least count of the apparatus is 0.0001, therefore the measurement is correct upto the fourth place of decimal.
Thus the most accurate measurement is 9.8132 m-s-2.Unattempted
Given: Least count of measurement = 0.0001.
We know that as the least count of the apparatus is 0.0001, therefore the measurement is correct upto the fourth place of decimal.
Thus the most accurate measurement is 9.8132 m-s-2. -
Question 9 of 15
9. Question
1 pointsThe angle gauge by Dr. Tamlison consists of a set of
Correct
We know that the first set of combination of angle gauges was devised by Dr. Tomlinson of National Physical Laboratory with thirteen separate gauges used in conjunction. These thirteen gauges can be divided into three series; degree, minutes and fractions of a minute.
Incorrect
We know that the first set of combination of angle gauges was devised by Dr. Tomlinson of National Physical Laboratory with thirteen separate gauges used in conjunction. These thirteen gauges can be divided into three series; degree, minutes and fractions of a minute.
Unattempted
We know that the first set of combination of angle gauges was devised by Dr. Tomlinson of National Physical Laboratory with thirteen separate gauges used in conjunction. These thirteen gauges can be divided into three series; degree, minutes and fractions of a minute.
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Question 10 of 15
10. Question
1 pointsWhat will be the value of 1 Angstrom (Å) = _____
Correct
We know that the value of 1 angstrom = 1.0 × 10-10 meter
1 Å = 1.0 × 10-10 mIncorrect
We know that the value of 1 angstrom = 1.0 × 10-10 meter
1 Å = 1.0 × 10-10 mUnattempted
We know that the value of 1 angstrom = 1.0 × 10-10 meter
1 Å = 1.0 × 10-10 m -
Question 11 of 15
11. Question
1 pointsThe basic principle of ‘Interchangeability’ is normally employed for
Correct
We know that the basic principle of successful ‘Interchangeability’ is normally employed for the mass production, Production of identical parts and the parts within the prescribed limits of sizes.
Incorrect
We know that the basic principle of successful ‘Interchangeability’ is normally employed for the mass production, Production of identical parts and the parts within the prescribed limits of sizes.
Unattempted
We know that the basic principle of successful ‘Interchangeability’ is normally employed for the mass production, Production of identical parts and the parts within the prescribed limits of sizes.
-
Question 12 of 15
12. Question
1 pointsFollowing is the theoretical size which is common to both the parts of a mating pair
Correct
We know that the base size is the theoretical size which is common to both the parts of mating pair.
Incorrect
We know that the base size is the theoretical size which is common to both the parts of mating pair.
Unattempted
We know that the base size is the theoretical size which is common to both the parts of mating pair.
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Question 13 of 15
13. Question
1 pointsTo compare an unknown with a standard through a calibrated system is called
Correct
We know that the indirect comparison is used to compare an unknown with a standard through a calibrated system.
Incorrect
We know that the indirect comparison is used to compare an unknown with a standard through a calibrated system.
Unattempted
We know that the indirect comparison is used to compare an unknown with a standard through a calibrated system.
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Question 14 of 15
14. Question
1 pointsThe following term(s) is (are) associated with measuring devices
Correct
We known that sensitivity an damping both are associated with measuring devices.
Incorrect
We known that sensitivity an damping both are associated with measuring devices.
Unattempted
We known that sensitivity an damping both are associated with measuring devices.
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Question 15 of 15
15. Question
1 pointsThe ability by which a measuring device can detect small differences in the quantity being measured by it, is called its
Correct
We know that by using the sensitivity ability a measuring device can detect small differences in the quantity.
Incorrect
We know that by using the sensitivity ability a measuring device can detect small differences in the quantity.
Unattempted
We know that by using the sensitivity ability a measuring device can detect small differences in the quantity.