what is the energy of a photon of infrared radiation with a frequency of 2.53 ×  1012  hz? planck’s constant is6.63 ×  10–34  j • s.a. 1.68 ×  1023  j        b. 1.68 ×  1047  j      c. 1.68 ×  10–21  j        d.  1.68 ×  10–45  j

Answer : The energy of a photon of infrared radiation is,

Solution :

Formula used :

where,

E = energy of a photon = ?

h = Planck's constant =

= frequency of a photon =

Now put all the given values in this formula, we get the energy of a photon.

Therefore, the energy of a photon of infrared radiation is,

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons