Web25. mar 2014 · The photon sphere is the final stable orbit you can have around a black hole. And only light, moving at, well, light speed, can actually exist at this altitude. Imagine you could exist right at ... WebIn general, spherical mirrors produce either magnified or reduced images, depending upon whether they are concave or convex. As an example, convex rearview mirrors in automobiles produce panoramic images of reduced size, while concave shaving mirrors enlarge features of the face around the chin.
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Web15. dec 2024 · In a flashlight, it's easier to do this job with a mirror, which usually weighs much less than a lens and is cheaper to manufacture as well. Compound lenses It's possible to make lenses that behave in more complex ways by combining convex and concave lenses. A lens that uses two or more simpler lenses in this way is called a compound lens. Web4. feb 2024 · A resurfaced clip has shown the moment a flat Earther disproved his own beliefs during an experiment to prove the world isn't round. Flat Earth conspiracists believe that the Earth is a flat plane rather than a spherical shape, but one conspiracy theorist accidentally debunked himself. WebComment on the electric field of the parallel plates a) between the plates, and b) near the edges of the plates. a) The lines are straight and uniform between the plates. b) The field … how do i install equation editor in word