X- rays are electromagnetic waves that have the higher frequencies than ultraviolet rays.

It's called Lead Aprons it's use to protect himself from unnecessary radiation during the procedure

Sir, my grandpa had a check up a month ago, I'm just wondering why did they put something like covering during his x-ray

Microwaves are most commonly used insatellite communications,radarsignals, phones, and navigational applications. Other applications where microwaves used are medical treatments, drying materials, and in households for the preparation of food.

Usage of Infrared Waves

Potential applications of VLC include Li-Fi, vehicle to vehiclecommunication, robots in hospitals, underwatercommunicationand information displayed on sign boards. The Li-Fi uses visible light forcommunicationto provide high speed internet up to 10Gbits/s.

UV radiation is widely used in industrial processes and in medical and dental practices for a variety of purposes, such as killing bacteria, creating fluorescent effects, curing inks and resins, phototherapy and sun tanning. Different UV wavelengths and intensities are used for different purposes.

X-raysplay an important role in the fight against cancer, with high energyradiationused to kill cancer cells and shrink tumours. Patients undergo treatment outside the body (known as external-beamradiation therapy) or from radioactive material that's inserted into the body in close proximity to cancer cells.

Gamma raysare ionizing electromagneticradiation, obtained by the decay of an atomic nucleus.Gamma raysare more penetrating, in matter, and can damage living cells to a great extent.Gamma raysare used in medicine (radiotherapy), industry (sterilization and disinfection) and the nuclear industry.