Chapter 22. Energy of a photon (22-26)

Question

XH7WfnGR4bU+PanaG4rYhB4gbsxG+rEv
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Question

LttiJS8wVN9NF6NS7aOfIceUe0c=
{"title":"Energy of a photon","description":"Incorrect","type":"incorrect","color":"#99CCFF","code":"[{\"shape\":\"poly\",\"coords\":\"82,133\"},{\"shape\":\"rect\",\"coords\":\"10,16,12,16\"},{\"shape\":\"poly\",\"coords\":\"144,22\"},{\"shape\":\"rect\",\"coords\":\"3,8,40,54\"}]"} {"title":"Wave frequency","description":"Correct!","type":"correct","color":"#008000","code":"[{\"shape\":\"rect\",\"coords\":\"134,7,159,65\"}]"} {"title":"Planck’s constant = 6.62606957 × 10–34 J • s","description":"Incorrect","type":"incorrect","color":"#333300","code":"[{\"shape\":\"rect\",\"coords\":\"101,6,132,56\"}]"}

Question

pmTZtGOqyOc2RXlfe+qvCB0y/SMCavM/cCx8aApk6BJPZpw16YXrAHpO2q9swGkDrYxFaDz4hIqMhk2/AEcIClNrahoVtqicK8/kyxukwBjlK2j6mOtVvQ==
{"title":"Energy of a photon","description":"Incorrect","type":"incorrect","color":"#99CCFF","code":"[{\"shape\":\"poly\",\"coords\":\"82,133\"},{\"shape\":\"rect\",\"coords\":\"10,16,12,16\"},{\"shape\":\"poly\",\"coords\":\"144,22\"},{\"shape\":\"rect\",\"coords\":\"3,8,40,54\"}]"} {"title":"Wave frequency","description":"Incorrect","type":"incorrect","color":"#008000","code":"[{\"shape\":\"rect\",\"coords\":\"134,7,159,65\"}]"} {"title":"Planck’s constant = 6.62606957 × 10–34 J • s","description":"Correct!","type":"correct","color":"#333300","code":"[{\"shape\":\"rect\",\"coords\":\"101,6,132,56\"}]"}

Review

The energy of an electromagnetic wave propagates as small, individual packets of energy called photons. The energy of an individual photon is proportional to the wave frequency, and the proportionality constant h is called Planck’s constant:

To three significant figures, \(h = 6.63 \times 10^{-34} \mathrm{J} \cdot \mathrm{s}\)