What Distance Method Did Edwin Hubble Use to Determine the Distance

question 1

Multiple Choice

What distance method did Edwin Hubble use to determine the distance to local galaxies?

• A) Hubble Law
• B) Supernova observations
• C) Period-luminosity relationship of variable stars
• D) Parallax

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Definitions:

Validity

The extent to which a test or instrument measures what it is supposed to measure.

Accuracy

The degree to which a measurement, calculation, or specification conforms to the correct value or a standard.

Validity

The extent to which a test or instrument accurately measures what it is intended to measure.

Instrument Used

Refers to the specific tool or device employed in a study, experiment, or assessment to collect data or measure variables.