Register - Log In


FunTrivia Homepage


  • New Questions

  • Unanswered


  • Post a Question

    • Goto Qn #




    Archives

    Why cannot light escape a black hole's gravitational attraction (since light has no mass)?

    Question #124324. Asked by naveen_213. (Nov 29 11 11:44 PM)


    coachpauly

    		Photons always travel at the speed of light, but they lose energy when travelling out of a gravitational field and appear to be redder to an external observer. The stronger the gravitational field, the more energy the photons lose because of this gravitational redshift. The extreme case is a black hole where photons from within a certain radius lose all their energy and become invisible. Indeed, light in the vicinity of such strong gravitational fields exhibits quite bizarre behavior.

    http://csep10.phys.utk.edu/astr162/lect/blackhole/blackhole.html


    Nov 30 11, 12:23 AM

    Find something useful here? Please help us spread the word about FunTrivia. Recommend this page below!


    Sign up to see all responses!

    Create a Free ID instantly to see all recent responses, post your own follow-ups or questions, and access over 1,000,000 trivia questions!

    Choose a User Name:
    Your Email Address:
    Choose a Password:

    I agree by the terms outlined in FunTrivia's Conditions of Use




    Other Similar Questions & Answers


    According to Einstein's theory mass expands as it nears the speed of light. Once an object reaches the speed of light, which cannot happen according to Einstein's theory, supposedly the mass of the object would reach infinity. With that said, why can people from 'Star Trek' travel faster than the speed of light?

    What is the boundary around a black hole called, where the escape speed equals the speed of light?

    Light slows down when it passes through certain substances, eg. glass, so therefore it is theoretically possible to slow light down further. What is the slowest speed that scientests have gotten light to?

    Suggested Related FunTrivia Quizzes - 90,000 currently online

    1 Light
    This quiz is a series of questions on reflection, refraction, lenses and spectrum... basically, on different areas of light.
    		Electromagnetic Spectrum and Optics Very Difficult
    10 Q
    Rossell
    Feb 02 07
    2505 plays
    2 And Then There Was Light
    Visible light is a very small band within the electromagnetic spectrum. Physicists consider the entire spectrum to be light. How much do you know about light?
    		Electromagnetic Spectrum and Optics Average
    10 Q
    drbabe
    Nov 20 10
    453 plays
    3 Holes
    Here's a fairly easy trivia about 'Holes', the book written by Louis Sacher. This is one of my favorites, and thanks to my homework giving great great teacher. If you haven't read it then you should. ENJOY!
    		Sachar, Louis Easy
    10 Q
    LotsofHomework
    Apr 05 01
    2829 plays




    "Ask FunTrivia" is for entertainment purposes only, and answers offered are unverified and unchecked by FunTrivia. We cannot guarantee the accuracy or veracity of ANY statement posted. Feel free to post an updated response if you feel that an answer is inadequate or incorrect. Please thoroughly research items where accuracy is important to you using multiple reliable sources. By accessing our website, you agree to be bound by our terms of service.