Question

The numbers 0.23350 has how many significant figures?

Answer 1

The number has 5 significant digit.

Explanation:

Consider the provided number.

The numbers that contribute to the significance of the total number value are significant figures. All the numbers are significant digit except all leading 0.

Rules:

• Non-zero digits are significant.

• If the zeros is in between non-zero digits then it will be significant.

• If the zeros are leading then they are not significant.
• If the zeros are at the right of the last non zero digit then they are significant (Trailing Zero).

Now consider the number 0.23350

Since 2, 3, 3 and 5 are non zero digit so they are significant. Here the last zero is also a significant digit because it follows the 4th rule.

Hence, the number has 5 significant digit.

Answer 2

Significant figures are the digits that carry meaning to its measurement. Significant figures includes all the numbers excluding all the leading zeros, trailing zeros. All non zero digits are significant. Zeros between the non zero digits are significant. In a decimal number, trailing zeros are significant.

Now, consider the given number 0.23350

Since, in a decimal number all the trailing zeros are significant.

So, in the number 0.23350 there are five significant figures 2,3,4,5 and 0.

Therefore, there are 5 significant figures in the given number.