Calculate the energy of the ultraviolet ray if the wavelenght is 150nm.Determine the frequency of this ray?

1 ⤊

plz answer with detail.

2007-03-07 19:39:56 · 3 answers · asked by ZulMalay 1 in Science & Mathematics ➔ Chemistry

energy=hv v-frequency
v=c/wavelength

2007-03-07 19:58:16 · answer #1 · answered by nag 2 · 1⤊ 0⤋

E=hv

E=h*c/lambda

lambda=wavelenght
E=energy
v=frequency
h=Plank's constant
c=speed of light

2007-03-07 19:58:41 · answer #2 · answered by scientific_boy3434 5 · 0⤊ 0⤋

You will need Planck's constant, denoted by h. E = h/lambda = h nu, where lambda is the wavelength [given] and nu is the frequency [wanted].

2007-03-07 19:49:49 · answer #3 · answered by Anonymous · 0⤊ 1⤋