Physics And Measurement Question 292

Question: Area of a square is (100±2)m2 . Its side is

Options:

A) (10±1)m

B) (10±0.1)m

C) (10±2)m

D) 10±2

Show Answer

Answer:

Correct Answer: A

Solution:

[a] Area=(Length)2

or  length=(Area)1/2=(100±2)1/2

=(100)1/2±12×2=(10±1)m



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