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Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion : Out of three measurements I = 0.7 m; I = 0.70 m and I = 0.700 m, the last one is most accurate.
Reason : In every measurement, only the last significant digit is not accurately known.
  • a)
    Assertion is correct, reason is correct; reason is a correct explanation for assertion.
  • b)
    Assertion is correct, reason is correct; reason is not a correct explanation for assertion
  • c)
    Assertion is correct, reason is incorrect
  • d)
    Assertion is incorrect, reason is correct.
Correct answer is option 'B'. Can you explain this answer?
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Directions : Each of these questions contain two statements, Assertio...
The last number is most accurate because it has greatest significant figure (3).
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Directions : Each of these questions contain two statements, Assertio...
Assertion: Out of three measurements I = 0.7 m; I = 0.70 m and I = 0.700 m, the last one is most accurate.
Reason: In every measurement, only the last significant digit is not accurately known.

Explanation:
The assertion claims that out of the three measurements given, the last one (I = 0.700 m) is the most accurate. The reason given to support this assertion is that in every measurement, only the last significant digit is not accurately known.

Understanding Significant Digits:
Significant digits are the digits that carry meaningful information in a measurement or a number. They are important because they indicate the precision or accuracy of the measurement. In general, the more significant digits a measurement has, the more accurate it is considered to be.

Explanation of the Reasoning:
The reason given in the statement is partially correct. It is true that in every measurement, only the last significant digit is not accurately known. However, it does not provide a correct explanation for why the last measurement (I = 0.700 m) is the most accurate.

Understanding Accuracy and Precision:
To understand why the last measurement is the most accurate, we need to consider the concepts of accuracy and precision.

- Accuracy refers to how close a measurement is to the true or accepted value. An accurate measurement is one that is very close to the true value.
- Precision refers to how close multiple measurements of the same quantity are to each other. A precise measurement is one that has very little variation from the other measurements.

Analysis of the Measurements:
Let's analyze the three measurements given:

1. I = 0.7 m: This measurement has one significant digit, which is the '7'. It indicates that the measurement is accurate to the tenths place (0.7 m).

2. I = 0.70 m: This measurement has two significant digits, which are '7' and '0'. It indicates that the measurement is accurate to the hundredths place (0.70 m).

3. I = 0.700 m: This measurement has three significant digits, which are '7', '0', and '0'. It indicates that the measurement is accurate to the thousandths place (0.700 m).

Comparison of the Measurements:
Now, let's compare the three measurements in terms of accuracy and precision:

1. I = 0.7 m: This measurement is less accurate than the other two because it has fewer significant digits. It is precise to the tenths place.

2. I = 0.70 m: This measurement is more accurate than the first one because it has an additional significant digit. It is precise to the hundredths place.

3. I = 0.700 m: This measurement is the most accurate out of the three because it has the highest number of significant digits. It is precise to the thousandths place.

Conclusion:
In conclusion, the reason given in the statement is partially correct, but it does not provide a correct explanation for why the last measurement (I = 0.700 m) is the most accurate. The accuracy of a measurement depends on the number of significant digits it has, and in this case, the last measurement has the highest number of significant digits, making it the
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Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.Assertion : Out of three measurements I = 0.7 m; I = 0.70 m and I = 0.700 m, the last one is most accurate.Reason : In every measurement, only the last significant digit is not accurately known.a)Assertion is correct, reason is correct; reason is a correct explanation for assertion.b)Assertion is correct, reason is correct; reason is not a correct explanation for assertionc)Assertion is correct, reason is incorrectd)Assertion is incorrect, reason is correct.Correct answer is option 'B'. Can you explain this answer?
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Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.Assertion : Out of three measurements I = 0.7 m; I = 0.70 m and I = 0.700 m, the last one is most accurate.Reason : In every measurement, only the last significant digit is not accurately known.a)Assertion is correct, reason is correct; reason is a correct explanation for assertion.b)Assertion is correct, reason is correct; reason is not a correct explanation for assertionc)Assertion is correct, reason is incorrectd)Assertion is incorrect, reason is correct.Correct answer is option 'B'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.Assertion : Out of three measurements I = 0.7 m; I = 0.70 m and I = 0.700 m, the last one is most accurate.Reason : In every measurement, only the last significant digit is not accurately known.a)Assertion is correct, reason is correct; reason is a correct explanation for assertion.b)Assertion is correct, reason is correct; reason is not a correct explanation for assertionc)Assertion is correct, reason is incorrectd)Assertion is incorrect, reason is correct.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.Assertion : Out of three measurements I = 0.7 m; I = 0.70 m and I = 0.700 m, the last one is most accurate.Reason : In every measurement, only the last significant digit is not accurately known.a)Assertion is correct, reason is correct; reason is a correct explanation for assertion.b)Assertion is correct, reason is correct; reason is not a correct explanation for assertionc)Assertion is correct, reason is incorrectd)Assertion is incorrect, reason is correct.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.Assertion : Out of three measurements I = 0.7 m; I = 0.70 m and I = 0.700 m, the last one is most accurate.Reason : In every measurement, only the last significant digit is not accurately known.a)Assertion is correct, reason is correct; reason is a correct explanation for assertion.b)Assertion is correct, reason is correct; reason is not a correct explanation for assertionc)Assertion is correct, reason is incorrectd)Assertion is incorrect, reason is correct.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11. Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
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