Light waves are_____________. * transverse longitudinal pressure waves sound waves On rotating the analyzer if the intensity of light rays coming out of it varies from maximum to zero, then the incident beam of light is ________. * partially polarized unpolarized plane polarized polarized What do all the types of radiation have in common? * speed amplitude frequency wavelength How can you tell one form of electromagnetic energy from another? * wavelength amplitude speed color The region of the electromagnetic spectrum where humans can detect electromagnetic radiation is * visible light infrared ultraviolet x-ray What is the direction of an induced current? * equal to the cause that produces it remains the same as the cause directs he cause opposes the cause