According to Swartzchild, what appeared when a star's mass was concentrated into a single point?

According to Swartzchild, what appeared when a star's mass was concentrated into a single point?

• A. A boundary
• B. A neutron star
• C. A white dwarf
• D. A supernova

Answer: (A)

Schwarzschild’s idea shows that if enough mass is squeezed into a region so that its radius is smaller than the Schwarzschild radius, a boundary forms around it—the event horizon. This boundary isn’t a physical surface you can touch; it’s a point in spacetime where nothing, not even light, can escape. So when a star’s mass is concentrated into a single point, the concept that appears is this boundary around a singularity, defining a black hole. The other outcomes—a neutron star, a white dwarf, or a supernova—are different results of stellar evolution and collapse driven by pressure support or explosive processes, not the emergence of an event horizon.

Schwarzschild’s idea shows that if enough mass is squeezed into a region so that its radius is smaller than the Schwarzschild radius, a boundary forms around it—the event horizon. This boundary isn’t a physical surface you can touch; it’s a point in spacetime where nothing, not even light, can escape. So when a star’s mass is concentrated into a single point, the concept that appears is this boundary around a singularity, defining a black hole.

The other outcomes—a neutron star, a white dwarf, or a supernova—are different results of stellar evolution and collapse driven by pressure support or explosive processes, not the emergence of an event horizon.