What is the radius of the event horizon of a 10 solar mass black hole?

Question

Quizplus · Accepted Answer

The radius of the event horizon of a black hole can be calculated by the formula R=2GM/c^2, where M is the mass of the black hole, G is the gravitational constant and c is the speed of light. Plugging in the values, we get R=2(6.67 x 10^-11 m^3/kg/s^2)(10 solar masses x 2 x 10^30 kg/solar mass)/(3 x 10^8 m/s)^2 = 29,549 meters or approximately 30 km. Therefore, the correct choice is C).

What Is the Radius of the Event Horizon of a 10