Question

The true value of a certain length is 4.468m. different

students measured value with different instruments are

4.3m, 4.234 m and 4.39 m. The most precise measurement

is​

Answer 1

Answer:

with 4.39 m...because it's more near to the value if 4.468

Answer 2

Given : Length is 4.468m. students measured values with different instruments are 4.3m,  4.234 m and 4.39 m

To Find : the most precise and accurate measurements are​

Solution

accurate measurement is the measurement closer to true value

Length is 4.468m

=> True value = 4.468 m

Difference of 4.3 m from 4.468m   = 0.168m

Difference of 4.234  m from 4.468m   = 0.234m

Difference of 4.39 m from 4.468m   = 0.078m

Least difference is 0.078 m  

Hence 4.39 m is  most accurate measurement

precision is the closeness of the measurements to each other

the most precise measurement is 4.234  m  as it has maximum significant digits

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