scope vs extent

scope and extent both are nouns.

Word	Noun	Adjective	Verb	Adverb
scope	Yes	No	No	No
extent	Yes	No	No	No

As nouns, extent is a hypernym of scope; that is, extent is a word with a broader meaning than scope:

scope (noun)	extent (noun)
electronic equipment that provides visual images of varying electrical quantities	the distance or area or volume over which something extends
a magnifier of images of distant objects	the point or degree to which something extends
an area in which something acts or operates or has power or control:
the state of the environment in which a situation exists