Which one of the following statements is corrcct ?

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Q: 29 (NDA-II/2016)

Which one of the following statements is corrcct ?

question_subject: 

Geography

question_exam: 

NDA-II

stats: 

0,9,18,7,4,10,6

keywords: 

{'spring balance': [0, 0, 0, 2], 'balance': [0, 0, 1, 1], 'measurement': [0, 1, 1, 3], 'mass': [0, 0, 2, 3], 'acceleration': [0, 0, 2, 8], 'gravity': [0, 0, 0, 6], 'spring': [0, 0, 1, 1]}

Option 1 states that the measurement of mass taken by a spring weighing balance is correct only at the place where the spring balance is calibrated for. This means that if the spring balance is calibrated for a specific location, its measurement of mass may not be accurate when used in other locations. Calibration is the process of adjusting or setting a measuring instrument to ensure its accuracy, so this option suggests that the spring balance`s accuracy is limited to the calibrated location.

Option 2 states that the measurement of mass taken by a spring weighing balance is correct at all places. This option suggests that the spring balance will provide accurate measurements of mass regardless of its location. However, this statement is not entirely accurate as the accuracy of the measurements can be affected by various factors, such as the location`s altitude, temperature, and gravitational acceleration.

Option 3 states the correct statement. It acknowledges that the measurement of mass taken by a spring weighing balance is accurate at places where the acceleration due to gravity is the same as the place where the spring balance is calibrated for. This option recognizes the influence of the gravitational acceleration on the accuracy of the measurements.

Option 4 suggests that a spring balance cannot be used to measure mass at any place. This statement is incorrect, as a spring balance can be used to measure

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