What speed can infrared rays travel?

• Feb 9, 2009

• #1

J

johnnyd

Member

Jun 16, 2008

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If somebody could be quick and e-mail me an answer as soon as u can because this is for my Physics assignment 4

 

• Feb 9, 2009

• #2

A

andys

Member

May 22, 2008

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Theoretically anywhere between 0 m/s and 3 x 10^8 m/s (vacuum). Just like visible light certain materials have a high group index and low group velocity for light-waves. In 2001 scientists momentarily stopped a beam of light.

 

• Feb 9, 2009

• #3

A

andys

Member

May 22, 2008

75

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6

Theoretically anywhere between 0 m/s and 3 x 10^8 m/s (vacuum). Just like visible light certain materials have a high group index and low group velocity for light-waves. In 2001 scientists momentarily stopped a beam of light.

 

• Feb 9, 2009

• #4

Z

Zau

New member

Oct 27, 2008

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at the speed of light
infrared is light right below the frequency of viable light. The frequency doesn't change the wave speed.