Physics 11.1.3a - Spherical and Parabolic Mirrors

Spherical and Parabolic mirrors. From the Physics course by Derek Owens. The distance learning class is available at www.derekowens.com

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[61miroman]

Thanks for the explain. The multiple light waves ocupying the same point at one time helps out.

[derekowens]

@61miroman Glad that helped. Here's another way to think about it: Rather than the light moving faster, the brightness becomes more intense as the rays converge.

[61miroman]

Ok it bounces of at 186,000 miles an hour but to get throught the focal point does oit speed up? Was my question. Like a garden hose if you restrict it it produces more pressurewhich increases velocity etc. Thank you.

[derekowens]

@61miroman I think I get your question, and the answer is definitely No. The light does not move faster due to restricted flow like water in a conduit. Multiple light waves can occupy the same point at one time. The "interfere", that is they mathematically add up, but the speed remains constant.

[61miroman]

Good video thanks for the enlightment. When the light is concentrated to the focal point does it speed up ? And if so what would be the mathematical formula. Could the focal point be passed through a tube to make a ray. Possibly for space travel? But thats at a later date. First is to find out if the ligh speeds up and by how much. If it speeds up lets say double the speed or faster we might have a eurika moment. As far as I know it's only 1x the speed of light so far. I am trying to multiply.

[derekowens]

@61miroman "Enlightenment!" Haha, I get it! No, the light does not speed up when it reflects. It strikes the mirror moving at 186,000 mi/s, and it bounces off at 186,000 mi/s.

[61miroman]

I was thinking of light waves like fluid . Tne photons don't have atomic weight so they can't take up space. Thanks again.

[Marichuy92]

@TheDevilvivek Because maybe, you couldn't look at yourself in the mirror if you saw your image turned on backwards. I mean, that's a response from the simple non-mathematic human, LoL o_O (srry 'bout my grammar)

[cdizzle609]

you good sir are the sex!