Ultrasonic waves have many applications in technology and medicine. one advantage is that large intensities can be used without danger to the ear. what is another advantage of their short wavelength? (why do microscopes use blue light rather than white light to see detail? ) 1. the short wavelengths of ultrasonic waves allow the imaging of smaller objects. 2. it is easy to cook food with ultrasonic waves. 3. ultrasonic waves are good for our health. 4. ultrasonic waves are easy to diffract.