Correct: EM waves are transverse, Wave speed = frequency x wavelength, The wavelength of visible light increases across the spectrum as you go from violet to red., The speed of EM waves in vacuum is 300 000 000 m/s, The energy of the waves increases as the frequency increases., IR has a greater frequency than microwaves., The hotter an object is, the more IR it emits. , Radio waves can be transmitted over long distances., Matt black surfaces are good absorber and emitter of IR., Shiny silvered surfaces are good reflectors., Incorrect: EM waves are longitudinal, Frequency = wave speed x wavelenght, The wavelength of visible light increases across the spectrum as you go from red to violet., The speed of EM waves in vacuum is 300 m/s, The energy of the waves increases as the wavelength increases., IR has a greater wavelength than microwaves., The hotter an object is, the less IR it emits. , Radio waves cannot be transmitted over long distances., Shiny silvered surfaces are good absorber and emitter of IR., Matt black surfaces are good reflectors.,

EM spectrum_13.1_13.2

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