JEE Exam > JEE Videos > Physics for JEE Main & Advanced > Significant Figures
Significant Figures Video Lecture | Physics for JEE Main & Advanced
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FAQs on Significant Figures Video Lecture - Physics for JEE Main & Advanced
| 1. What are significant figures in JEE? |  |
Ans. Significant figures in JEE refer to the digits in a numerical value that carry meaningful information about the precision of the measurement. These figures include all the certain digits plus the first uncertain digit.
| 2. How do you determine the number of significant figures in a given value for JEE? | |
Ans. To determine the number of significant figures in a given value for JEE, count all the digits from the first non-zero digit on the left to the last digit on the right. All non-zero digits are considered significant, while zeros between non-zero digits or after a decimal point are also significant.
| 3. Why are significant figures important in JEE exams? | |
Ans. Significant figures are important in JEE exams because they help in determining the precision of a measurement or calculation. It is crucial to use the correct number of significant figures in calculations to ensure the accuracy of the final answer.
| 4. How do you round off numbers to the correct number of significant figures in JEE? | |
Ans. To round off numbers to the correct number of significant figures in JEE, identify the last significant figure based on the given value. Then, look at the next digit – if it is 5 or greater, round up the last significant figure. If it is less than 5, leave the last significant figure unchanged.
| 5. Can you have more significant figures in the result of a calculation than in the original data for JEE? | |
Ans. No, the result of a calculation in JEE should not have more significant figures than the original data. The number of significant figures in the result should be limited to the least number of significant figures in the original data used for the calculation.
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Nov 21, 2024 Last updated |
Video Description: Significant Figures for JEE 2024 is part of Physics for JEE Main & Advanced preparation.
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