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steps to solve these? thanks! 4.(3 pis) What is the frequency of the electromagnetic wave shown in the 250 nm figure? B) 2.8X10 6 12

steps to solve these? thanks!
4.(3 pis) What is the frequency of the electromagnetic wave shown in the 250 nm figure? B) 2.8X10 6 12 C) 3 5x10* Hz D)4.1810 3 Hz E) 18X10' Hz F) None of the above S, (3 pts) The maximum value for the electric field strength for average light intensity of 15 kW/m is: (1 35 N/C BY 189 N/C C1560 N/C DY 1062 N/C E) 1660 N/C F) None of the above 6, (2 pts) What is the maximum magnetic field strength for an electromagnetic wave with maximum electric field strength of 300 kN/C? A) 0.25. T B) ImT C)10T D) 15KT B) 0.1 UIT F) None of the above

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