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Q.

Three students have done an experiment two times individually, for which the correct value is 2.00 g. The results are

 Experiment 1Experiment 2
Student A1.951.93
Student B1.942.05
Student C2.011.99

Whose results are accurate and precise?

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a

Student C

b

Student B

c

Student A

d

Student A and Student B

answer is A.

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Detailed Solution

1. A measurement can be called as accurate it its mean value is almost similar to real value

2. A measurement is said to be precise if results of experiments by same person or instrument are close to each other

Base on these 2 concepts Student C can be called as both accurate and precise

Hence option (A) is the correct answer.

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