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Please,please help me If the true value of aquantity is 3g, which of the following valuesare most precise?

If the true value of a quantity is 3g, which of the following values are most precise?

  • Option 1)

    2.98g, 2.97g

  • Option 2)

    3.01g, 2.99g

  • Option 3)

    2.94g, 2.97g

  • Option 4)

    2.97g, 2.99g

 
Answers (1)
86 Views
V Vakul

As we learnt

 

Precision & Accuracy -

Precision is the closeness of various measurements for the same quantity

- wherein

True value of a quantity is 5g. A student measures it twice and gets 4.95g and 4.94g.

 

 

 

Since, 2.98g & 2.97g are closest to in value to each other, they are most precise reagardless of their accuracy.

\therefore Solution is A


Option 1)

2.98g, 2.97g

This is correct.

Option 2)

3.01g, 2.99g

This is incorrect.

Option 3)

2.94g, 2.97g

This is incorrect.

Option 4)

2.97g, 2.99g

This is incorrect.

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