Aphoton has a frequency of 7.3 × 10–17 hz. planck’s constant is 6.63 × 10–34 j•s. the energy of the photon, to the nearest tenths place, is × 10–50 j.

Given:

E = 7.3 × 10–17 Hz                                                                                      

 h= 6.63 × 10–34 J•s

Now E = hf

where E is the energy of the photon                                                          

h is the Planck's constant                                                                          

f is the frequency of the photon

Substituting the values in the equation we get                                        

E= 7.3 × 10^-17 × 6.63 × 10^-34                                                                  

E= 4.8399 × 10^-50  J.                                                                                                      

the answers would be

the first one and the second one