WHICH_OF_THE_FOLLOWING_IS_ASSOCIATED_WITH_AN_ELECTRON_MICROSCOPE??$ – McqOptions

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1.	WHICH_OF_THE_FOLLOWING_IS_ASSOCIATED_WITH_AN_ELECTRON_MICROSCOPE??$
A.	Matter waves
B.	Electrical waves
C.	Magnetic waves
D.	Electromagnetic waves
Answer» B. Electrical waves

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A_radio_station_broadcasts_its_programme_at_219.3_metre_wavelength._Determine_the_frequency_of_radio_waves_if_velocity_of_radio_waves_is_3‚Äö√†√∂‚àö‚â•10<sup>8</sup>_m/s.$#