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Physics 7 Online
OpenStudy (anonymous):

Which of the following represents the greatest energy transition from a higher energy level to a lower one? emission of a blue photon of 450 nm emission of a red photon of 770 nm emission of a green photon of 550 nm emission of a yellow photon of 590 nm

OpenStudy (anonymous):

wavelength should be smaller ..to have greatest energy..

OpenStudy (anonymous):

The greatest energy transition (to a lower energy level) will result in the emission of a photon with the highest energy. The energy of a photon is given as:\[E=h \nu\]where E is energy; h is Planck's constant; and ν is the photon's frequency. In terms of wavelength that equation is:\[E=\frac{ hc }{ \lambda }\]where c is the speed of light, and λ is the photon's wavelength.

OpenStudy (anonymous):

That should make it obvious which of the four possible answers is the correct one.

OpenStudy (anonymous):

what do the colors for the photons represent?

OpenStudy (anonymous):

like what are their values? because im trying to find out but i can't find anything

OpenStudy (anonymous):

colours are representing those wavelengths..thats all .. the wavelength increases in the order VIBGYOR

OpenStudy (anonymous):

ohhh okay

OpenStudy (anonymous):

so is it emission of a red photon of 770 nm ?

OpenStudy (anonymous):

increased wavelength implies decreased energy.. E=hXfrequency

OpenStudy (anonymous):

never mind it's emission of a blue photon of 450 nm

OpenStudy (anonymous):

i calculated something wrong

OpenStudy (anonymous):

@aqzbala ?

OpenStudy (anonymous):

ya u r right

OpenStudy (anonymous):

thank you so much!

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