Question

Which of the following measurements has one significant digit? Question 7 options: 0.20 s 500 m 0.051 kg 3.0 g

Answer 1

500 m

Step-by-step explanation:

The rules of the significant digits are given below as:

• All the non zero digits are significant. Example 123 has three significant digits.
• The zero present in between two non zero digits are significant. Example 404 has 3 significant digits.
• The leading zeroes are not significant. Example 0.0032 has 2 significant digits only.
• Trailing zero to the right in the decimal is significant. Example 3.0 has 2 significant digits.

• Trailing zero in the whole number without any decimal are not significant. Example 500 has only one significant digit.

Therefore, in the given digits by the above rules it can be easily say that 500 m has only one significant digit.