Correct: UV rays are used in sunbeds, Sound waves are longitudinal , Gamma waves are transverse, Gamma rays can treat cancer, Gamma rays can cause cancer, Infra red is used in cooking, UV has higher frequency than microwaves, Ultra violet radiation can cause burns, Electromagnetic waves do not require a medium, Mechanical waves do require a medium, Incorrect: Sound waves are transverse, frequency = wave speed x wavelength, Gamma waves have long wavelengths, Radio waves have high frequencies, EM waves travel at different speeds, Electromagnetic waves are longitudinal, Microwaves have higher frequencies than x rays, Radio waves can cause cancer, X-rays have the most energy on the electromagnetic spectrum, Mechanical waves DO NOT require a medium,

Electromagnetic Spectrum

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