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Light speed

Cman Fri 20 Sep 04:58:29 2019 No.10987528 View Reply Original Report

Quoted By: >>10987530 >>10987531 >>10987532 >>10987556 >>10987695

What do you guys think would happen if we bounced different coloured lasers at the moon and timed how long it took for each individual colour to get back to earth?
Would the different frequencies/wavelengths travel at different speeds

Anonymous

Anonymous Fri 20 Sep 2019 05:03:22 No.10987530 Report

Quoted By: >>10987556

>>10987528
They would all travel at the same speed. Provided they all take the same route, then if they are measured leaving at the same time they will be measured as returning at the same time.

Anonymous

Anonymous Fri 20 Sep 2019 05:04:01 No.10987531 Report

Quoted By: >>10987536

>>10987528
i think they all travel at the same speed but just have different amplitudes or periods or something
i dont actually know but im p sure they aren't different rates

Anonymous

Anonymous Fri 20 Sep 2019 05:04:04 No.10987532 Report

Quoted By: >>10987556

>>10987528
possibly due to refraction into/out of atmosphere causing slight difference in distance traveled, which is a function of wavelength. speed of light is constant though. not sure

Anonymous

Anonymous Fri 20 Sep 2019 05:08:00 No.10987536 Report

Quoted By:

>>10987531
>just have different amplitudes or periods
Neither, it's both.

Yuji Sakai

Yuji Sakai Fri 20 Sep 2019 05:18:27 No.10987556 Report

Quoted By: >>10987693

>>10987528
>>10987530
>>10987532
>brainlet thinks light is a particle

Cman

Cman Fri 20 Sep 2019 05:44:13 No.10987614 Report

Quoted By:

Light is always observed to be a wave.

Anonymous

Anonymous Fri 20 Sep 2019 06:51:55 No.10987693 Report

Quoted By: >>10987727

>>10987556
But doesn't light act both as a particle and as a wave?

Anonymous

Anonymous Fri 20 Sep 2019 06:53:08 No.10987695 Report

Quoted By:

>>10987528
>Would the different frequencies/wavelengths travel at different speeds
No, providing they are traveling through vacuum. In fact, through materials with inhomogenous internal electric fields, they DO travel at different speeds. This is why white light refracts into the visible spectrum through a prism.

But if what you meant was through vacuum, then no.

Anonymous

Anonymous Fri 20 Sep 2019 07:27:55 No.10987727 Report

Quoted By:

>>10987693
>brainlets think in particle

Anonymous

Anonymous Fri 20 Sep 2019 07:45:16 No.10987751 Report

Quoted By:

Refractive index of air is function of wavelength. So it will take differeng time.

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