Explanation:
The wavelength of the ultraviolet rays lies in between 10 nm to 400 nm. UV rays can cause the following problems on human :
(1) It can increase the risk of skin cancer.
(2) It can cause cataract.
(3) It can cause painful sunburn.
(4) It can cause wrinkling and age on the skin.
So, it is advisable to use sunscreen before leaving home and use goggles. This is the cure for ultraviolet radiation.