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प्रश्न
What are black holes?
टीपा लिहा
उत्तर
- Black holes are the end-stage of stars which are the highly-dense massive objects. Its mass ranges from 20 times the mass of the sun to 1 million times the mass of the sun.
- It has a very strong gravitational force such that no particle or even light can escape from it.
- The existence of black holes is studied when the stars orbiting the black hole behaves differently from the other stars. Every galaxy has a black hole at its center.
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Nanoscience and Nanotechnology
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