Atomic Spectra Online Module

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Atomic Spectra Online Module

Postby Richard_Yu_4B » Sat Oct 08, 2016 10:01 pm

Question: In 1.0 s, a 60 W bulb emits 11 J of energy in the form of infrared radiation (heat) of wavelength 1850 nm. What is the energy per photon of light emitted?
How many photons of infrared radiation does the lamp generate in 1.0 s?

is there an equation that allows us to find the number of photons?

Josh Ku 3H
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Joined: Wed Sep 21, 2016 2:59 pm

Re: Atomic Spectra Online Module

Postby Josh Ku 3H » Sat Oct 08, 2016 11:14 pm

I'm not sure if there is a specific equation to solving this question but the method I used was to first find the energy of each photon and then divide the amount energy produced in one second (11J) by the energy of each photon. You would find the amount energy of each photon through the equation E = (h * c)/wavelenth (1850nm).

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