An Isolated Black Hole in Empty Intergalactic Space Would Be

question 137

Multiple Choice

An isolated black hole in empty intergalactic space would be difficult to detect because

• A) there would be no stars behind it whose light it could bend or lens gravitationally
• B) it could not emit light from inside its event horizon
• C) no companion stars would be affected by its gravitational field
• D) no matter would be falling into it to create an x-ray emitting accretion disk
• E) All of the above

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