Question

find the energy of a photon with 4000A° wavelength in water

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Answer 1

Answer:

E=hr(r=frequency)

   =h x c/λ  

 =6.626 x 10^-34 x 3 x 10^8 x 4000 x 10^-10

 =19.878 x 10^-34/40

  =0.49655 x 10^-34 m

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Answer 2

Answer:

Hey Buddy here's ur answer