both questions pls The laser used to play CDs emits electromagnetic radiation with a wavelength of...

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both questions pls
The laser used to play CDs emits electromagnetic radiation with a wavelength of 840. nm. What is the energy of 1 photon of th

science chemistry

Answer 1

Answer #1

12 & E= hc h = 6.626 X 10 34 I/S (= x 108 m/s = m (wavelength ) = 840 x 10 9 m e 1 nen = 1x 10 m - E-6-626x10-34 x 3x108 840X

Answer 2

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