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How to multiply numbers while considering significant digits?
When multiplying numbers with significant digits, count the total number of significant digits in each number. Multiply the numbers as usual, but round the final answer to match the least number of significant digits in the original numbers.
Can you explain the meaning of significant digits in measurement?
Significant digits in measurement refer to the digits in a number that carry meaning or contribute to the precision of the measurement. They indicate the level of accuracy or certainty in a measurement, with each significant digit representing a reliable and known value.
Give the rules in identifying significant figures?
Non-zero digits are always significant. Zeros between non-zero digits are significant. Leading zeros (zeros to the left of the first non-zero digit) are not significant. Trailing zeros in a number with a decimal point are significant. Trailing zeros in a whole number without a decimal point may or may not be significant, depending on how the number is expressed.
How to add significant figures accurately in mathematical calculations?
When adding numbers with significant figures, the result should be rounded to the least number of decimal places in the original numbers. Only the digits that are certain should be used in the final answer.
What is the frequency of a photon with a wavelength of 781 nm Report your answers to three significant digits?
The frequency of a photon with a wavelength of 781 nm is approximately 384 THz (terahertz).
