Lightwaves travel from the air into a lens made of glass. Their velocity decreases as they enter the glass. How does this affect the frequency and wavelength of the lightwaves?
Their frequency stays the same and their wavelength increases.
Their frequency stays the same and their wavelength decreases.
Their frequency increases and their wavelength decreases.
Their frequency decreases and their wavelength increases.

Question

Lightwaves travel from the air into a lens made of glass. Their velocity decreases as they enter the glass. How does this affect the frequency and wavelength of the lightwaves?
Their frequency stays the same and their wavelength increases.
Their frequency stays the same and their wavelength decreases.
Their frequency increases and their wavelength decreases.
Their frequency decreases and their wavelength increases.

anonymous · Answer

have you eliminated any yet?

anonymous · Answer

B. Their frequency stays the same and their wavelength decreases.


It is FREQUENCY that sets the color of light. NOT wavelength.

Wavelength is the "sacrificial quantity" that adjusts to adapt to change in speed.


If it were frequency that changed, it would mean big problems for causality and conservation of energy.

anonymous · Answer

wow you just got that off of google.

anonymous · Answer

http://answers.yahoo.com/question/index?qid=20130619200302AAO18Nm proof

anonymous · Answer

thanks beautiful

anonymous · Answer

lol didnt say i didnt get off google.

anonymous · Answer

way to help someone dude

anonymous · Answer

most def lololol.