5. Radio waves of 300 m wavelength have a frequency of:
a.108kHz
b.100kHz
c.1 MHz
d.500 kHz
6.Two identical point charges are separated by a distance r = 100 cm. The magnitude of the electrostatic force between them is 4.0 N. The value of each charge is:
a.0.444 nanoC
b.21.1 microC
c.1.8 nanoC
d.42 microC
5. Radio waves of 300 m wavelength have a frequency of: a.108kHz b.100kHz c.1 MHz d.500 kHz 6.Two identical point charge
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