What is the frequency of a photon with an energy of 3.38 x 10-19 J?

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E =

h =

f = ?

Energy of Photon is given by,

                                   E = hf

Rearrange the equation,

                                    f =

where,

           E = energy

           h = planck's constant

           f = frequency

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Substitute the variable in the equation,

                                 f =

Simplify the equation,

                                  f = 5.10 x 10^14 Hz          

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

3 1/4 %

explanation: