If ultraviolet rays can damage our eyes why don't ultrasonic waves damage our ears ?

Answer 1

The levels and type of energy required to damage something are dependent upon the properties of the material. Not only are sound waves and light different sorts of energy (kinetic and electromagnetic respectively) but they are impacting different materials with different resistances.

Ultraviolet light is not even universally damaging - a number of animal species can see light in at least the lower end of the UV spectrum, which would tend to indicate that it does not damage their eyes.

Answer 2

both ultraviolet rays and ultrasonic waves are different types of energy that travel rather well in our atmosphere.

From a physical point of view, ultraviolet rays have much more potential energy in them then any type of sound wave. ultraviolet rays not only damage our eyes, but our entire body by creating mutations with free radicals. But then most light energy has that potential (remember this is what the ozone layer protects).

You seem to be confused about our sensory perception devices (regularly called our 5 senses) and the terms we've labeled certain types of energy. Our eyes pick up different energy wave lengths that our ears. When we term something ultraviolet or ultrasonic it's because we are very egocentric and not because those things are inherant in anything else.

Answer 3

Too low. Not enough energy to do damage, where ultraviolet rays are much higher frequency and can do more harm in less time.