While measuring the length of an object, if the zero mark of a scale does not coincide with one of the ends of the object, then such an error is called _____ error.

parallax

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zero

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instrumental

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(a) and (b) above.

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Solution

The correct option is B zero
When the zero mark on the scale exactly coincides with one end of the object, then the measurement is said to have no zero error. However, if there is a shift, zero error will be equal to the length by which the end of the object has shifted from the zero mark.

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Similar questions

Q. In case of error, the zero mark of the scale does not coincide with one of the ends of the object that is being measured.

Q. The error that occurs when the length of an object is measured using a scale that has damaged zero mark is called:

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and

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Q. While measuring the zero error of a vernier we see that zero of vernier scale is to the right of the zero marking of the main scale with

6^{t h}

vernier division coinciding with main scale division. If the least count of the vernier is 0.1 mm, then find its zero error.

In a vernier callipers, there are 10 divisions on the vernier scale and 1 cm on the main scale is divided in 10 parts. While measuring a length, the zero of the vernier lies just ahead of 1.8 cm mark and 4th division of vernier coincides with a main scale division.

(a) Find the length.

(b) If zero error of vernier callipers is - 0.02 cm, what is the correct length ?

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While measuring the length of an object, if the zero mark of a scale does not coincide with one of the ends of the object, then such an error is called _____ error.

The correct option is B zeroWhen the zero mark on the scale exactly coincides with one end of the object, then the measurement is said to have no zero error. However, if there is a shift, zero error will be equal to the length by which the end of the object has shifted from the zero mark.

The correct option is B zero
When the zero mark on the scale exactly coincides with one end of the object, then the measurement is said to have no zero error. However, if there is a shift, zero error will be equal to the length by which the end of the object has shifted from the zero mark.