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An object has length of 0.42 cm.which of the statements is correct? A. the uncertainty of length is about 3% B.the uncertainty of length is about 2% C.the uncertainty of length is about 1% D.the uncertainity of length is about 4%?
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An object has length of 0.42 cm.which of the statements is correct? A....
Answer
Statement
An object has a length of 0.42 cm. Which of the following statements is correct?
Solution
- A. The uncertainty of length is about 3%: To calculate the uncertainty, we need to know the precision of the measuring instrument used. Without that information, we cannot estimate the uncertainty. Therefore, statement A cannot be considered.
- B. The uncertainty of length is about 2%: Again, we do not have information about the precision of the measuring instrument, so statement B cannot be considered.
- C. The uncertainty of length is about 1%: Without the precision of the measuring instrument, we cannot directly estimate the uncertainty. However, we can make an assumption that the length was measured using a ruler with a precision of 0.05 cm. In that case, the uncertainty in length would be half the smallest division, which is 0.025 cm. Therefore, the uncertainty of length is about 0.025/0.42 x 100% = 6%. Thus, statement C cannot be considered.
- D. The uncertainty of length is about 4%: Using the same assumption as above, the uncertainty in length would be 0.025 cm. Therefore, the uncertainty of length is about 0.025/0.42 x 100% = 6%. Thus, statement D cannot be considered.
Conclusion
Based on the assumptions made, the uncertainty in length is about 6%, which means none of the given statements are correct.
Community Answer
An object has length of 0.42 cm.which of the statements is correct? A....
I have not read much on this. But , i think ,in order to find uncertainty there should be estimate+_error.
I have tried a logic , think OPTION (B) is correct.
I have tried a logic , think OPTION (B) is correct.
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An object has length of 0.42 cm.which of the statements is correct? A. the uncertainty of length is about 3% B.the uncertainty of length is about 2% C.the uncertainty of length is about 1% D.the uncertainity of length is about 4%?
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An object has length of 0.42 cm.which of the statements is correct? A. the uncertainty of length is about 3% B.the uncertainty of length is about 2% C.the uncertainty of length is about 1% D.the uncertainity of length is about 4%? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about An object has length of 0.42 cm.which of the statements is correct? A. the uncertainty of length is about 3% B.the uncertainty of length is about 2% C.the uncertainty of length is about 1% D.the uncertainity of length is about 4%? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object has length of 0.42 cm.which of the statements is correct? A. the uncertainty of length is about 3% B.the uncertainty of length is about 2% C.the uncertainty of length is about 1% D.the uncertainity of length is about 4%?.
An object has length of 0.42 cm.which of the statements is correct? A. the uncertainty of length is about 3% B.the uncertainty of length is about 2% C.the uncertainty of length is about 1% D.the uncertainity of length is about 4%? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about An object has length of 0.42 cm.which of the statements is correct? A. the uncertainty of length is about 3% B.the uncertainty of length is about 2% C.the uncertainty of length is about 1% D.the uncertainity of length is about 4%? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object has length of 0.42 cm.which of the statements is correct? A. the uncertainty of length is about 3% B.the uncertainty of length is about 2% C.the uncertainty of length is about 1% D.the uncertainity of length is about 4%?.
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