Which of the following statements are true regarding electromagnetic waves traveling through a vacuum? More than one statement may be correct.
1.All waves have the same wavelength.
2.All waves have the same frequency.
3.All waves travel at 3.00 108 m/s.
4.The electric and magnetic fields associated with the waves are perpendicular to each other and to the direction of wave propagation.
5.The speed of the waves depends on their frequency.
Question 2
If the voltage across a circuit element has its maximum value when the current in the circuit is zero, which of the following statements must be true?
1.The circuit element is a resistor.
2.The circuit element is a capacitor.
3.The circuit element is an inductor.
4.The current and voltage are 90 out of phase.
5.The current and voltage are 180 out of phase.
