If Nothing Can Ever Leave a Black Hole,can the Mass

question 354

Multiple Choice

If nothing can ever leave a black hole,can the mass of a black hole ever decrease?

• A) no
• B) yes, if antiparticles enter a black hole and annihilate with matter already inside the black hole
• C) yes, if the matter inside the black hole is radioactive (e.g., uranium), allowing their decay products-alpha particles, electrons, and gamma rays-to constantly leave the black hole
• D) yes, if particle-antiparticle pairs are created outside the event horizon out of gravitational energy from the black hole and one particle enters the event horizon while the other escapes

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Definitions:

Effective Annual Yield

The annual return on an investment, accounting for the effect of compounding interest over a period of time.

Interest Payment

A payment made to a lender by a borrower as compensation for the use of borrowed money, typically expressed as an annual percentage of the loan balance.

Zero-Coupon Bond

A type of bond that does not pay periodic interest payments and is instead issued at a deep discount to its face value.