JEE Exam > JEE Questions > A student has measured the length of a wire e...
Start Learning for Free
A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal to
- a)five
- b)four
- c)six
- d)None of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A student has measured the length of a wire equal to 0.04580 m. This v...
Zero on right having decimal place are counted. For a number less than 1, zeroes on left of first non zero-digit are not significant
The number of significant figures in 0.04580 is 4
Most Upvoted Answer
A student has measured the length of a wire equal to 0.04580 m. This v...
Zero on right having decimal place are counted. For a number less than 1, zeroes on left of first non zero-digit are not significant
The number of significant figures in 0.04580 is 4
Free Test
FREE
| Start Free Test |
Community Answer
A student has measured the length of a wire equal to 0.04580 m. This v...
Explanation:
Significant figures are a way to express the precision or accuracy of a measurement. They represent the digits in a number that are known with certainty, plus one uncertain or estimated digit. The rules for determining significant figures are as follows:
1. Non-zero digits are always significant.
2. Zeros between non-zero digits are always significant.
3. Leading zeros (zeros to the left of the first non-zero digit) are not significant.
4. Trailing zeros (zeros to the right of the last non-zero digit) are significant if there is a decimal point present.
5. Trailing zeros that are simply placeholders to indicate the magnitude of the number are not significant.
Given:
Length of wire = 0.04580 m
Determination of significant figures:
1. The number 0.04580 has five digits, but not all of them are significant according to the rules mentioned above.
2. The leading zero in 0.04580 is not significant because it is a placeholder and does not contribute to the precision of the measurement.
3. The non-zero digits 4, 5, 8, and the trailing zero after 8 are all significant.
4. Therefore, the number 0.04580 has four significant figures.
Answer:
The correct answer is option B) four significant figures.
Significant figures are a way to express the precision or accuracy of a measurement. They represent the digits in a number that are known with certainty, plus one uncertain or estimated digit. The rules for determining significant figures are as follows:
1. Non-zero digits are always significant.
2. Zeros between non-zero digits are always significant.
3. Leading zeros (zeros to the left of the first non-zero digit) are not significant.
4. Trailing zeros (zeros to the right of the last non-zero digit) are significant if there is a decimal point present.
5. Trailing zeros that are simply placeholders to indicate the magnitude of the number are not significant.
Given:
Length of wire = 0.04580 m
Determination of significant figures:
1. The number 0.04580 has five digits, but not all of them are significant according to the rules mentioned above.
2. The leading zero in 0.04580 is not significant because it is a placeholder and does not contribute to the precision of the measurement.
3. The non-zero digits 4, 5, 8, and the trailing zero after 8 are all significant.
4. Therefore, the number 0.04580 has four significant figures.
Answer:
The correct answer is option B) four significant figures.
|
Explore Courses for JEE exam
|
|
Top Courses for JEEView all
Question Description
A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer?.
A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer?.
Solutions for A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal toa) five b) four c) six d) None of these Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice JEE tests.
|
|
Explore Courses for JEE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup