Which properties of the matter inside a black hole can be measured from outside the black hole?
A) mass and angular momentum
B) only mass
C) mass, angular momentum, electric charge, and average atomic weight
D) mass, angular momentum, and electric charge

Question

Quizplus · Accepted Answer

The properties of matter inside a black hole that can be measured from outside are mass, angular momentum, and electric charge. These are known as the black hole's "no-hair" properties, indicating that these are the only features that can be determined from outside the event horizon.

Which Properties of the Matter Inside a Black Hole Can