Final answer:
The correct multiplier for the prefix femto is 10^-15, which is used in measurements to express very small quantities in scientific fields.
Step-by-step explanation:
The correct multiplier for the prefix femto is 10^-15. In the International System of Units (SI), prefixes are used to denote specific multipliers of a base unit. For example, the prefix femto, represented by the letter 'f', indicates a factor of 10^-15. This is essential in various scientific fields, including Physics and Chemistry, to express very small measurements.
When dealing with multiplicative prefixes and their corresponding powers of 10, it's important to remember that each prefix represents a distinct power of 10. For instance, kilo (k) indicates a thousand times the base unit (10^3), while mega (M) signifies a million times the base unit (10^6). The prefix femto is used for values that are much smaller than the base unit, making it easier to express and understand quantities that are otherwise inconveniently tiny.