The frequency of a given region of the electromagnetic spectrum ranges from 3 × 1016 − 3 × 1019 hertz. Which type of wave is found in this region? A. x-rays B. ultraviolet rays C. infrared waves D. radio waves

Wavelength = (speed) / (frequency) Speed of EM radiation = 3 x 10⁸ m/s Frequency (3 × 10¹⁹ Hz)  ===>  wavelength  =  0.01 nanometer Frequency (3 × 10¹⁶ Hz)  ===>  wavelength  =  10 nanometers This is the region of X-rays.