4. which of following statements best describes an electromagnetic waves with a long wavelength?
a. it has a low frequency and can travel in a vacuum
b. it has a high frequency and can travel in a vacuum
c. it has a low frequency and can only travel in a medium
d. it has a high frequency and can only travel in a medium
5. the electric and magnetic fields of an electromagnetic wave are
a. in phase and perpendicular to each other
b. in phase and not perpendicular to each other
c. out of phase and perpendicular to each other
d. out of phase and not perpendicular to each other
6. consisder an oscillator which has a charged particle and oscillates about its mean position with a frequency of 300 MHz. The wavelength of electromagnetic waves produced by this oscillator is____.(Note: 1 MHz = 1,000,000 Hz)
a. 1 m
b. 10 m
c. 100 m
d. 1000 m
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Explanation:
sorry po hindi ko Po Alam sagot pic please