7. Con respecto a la propagación de las ondas electromagnéticas, es correcto afirmar que I) pueden viajar en el vacío. II) producen oscilación de las partículas al desplazarse por un medio material. III) no se propagan en medios materiales. *
A) Solo I
B) Solo II
C) Solo III
D) Solo I y II
E) Solo I y III
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7. Con respecto a la propagación de las ondas electromagnéticas, es correcto afirmar que I) pueden v...
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