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11th Class Physics Gravitation / गुरुत्वाकर्षण Question Bank Gravitation Conceptual Problems

  • question_answer
    According to Albert Einstein, no particle can have velocity equal to or greater than that of light. Hence what may be the value of escape velocity from the surface of a 'Black hole' such that it holds everything to itself?                           

    Answer:

                    \[{{\upsilon }_{e}}=\sqrt{\frac{2GM}{R}}\le c.\]


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