331.3 nm 600 W lamp photons emit

331.3 nm 600 W lamp photons emit

 

 

331.3 nm 자외선을 방출하는 600 W 램프는

매초 몇 개의 광자(photons)를 방출하는가?

 

 

A 600 W mercury lamp emits monochromatic radiation of wavelength 331.3 nm.

How many photons are emitted from the lamp per second?

 

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E = nhν = nhc / λ

( 참고 https://ywpop.tistory.com/4964 )

 

 

 

1 W = 1 J/s

( 참고 https://ywpop.tistory.com/12207 )

 

 

 

n = Eλ / hc

= [(600 J/s) (331.3×10^(-9) m)] / [(6.626×10^(-34) J•s) (2.998×10^8 m/s)]

= [(600) (331.3×10^(-9))] / [(6.626×10^(-34)) (2.998×10^8)]

= 1.001×10^21 photons/s

 

 

 

답: 1.001×10^21