If the laser emits in the visible region then the radiation is perceived as a single colour. The wavelength of light is usually measured in nanometres, or one-thousand-millionth of a metre and is abbreviated to â. â.
A shower or tub equipped with a showerhead shall have a minimum ceiling height of 6 feet 8 inches (2036 mm) above a minimum area 30 inches (762 mm) by 30 inches (762 mm) at the showerhead. The tub/shower is set in an alcove that has as a partial sloped ceiling.
Therefore, the height of 74â may be too low for many people. The best solution is a shower head mounted on a sliding vertical bar. If you do raise the showerhead we suggest the waterproof wall material within the shower extend at least 3 inches above the final or highest possible position for the showerhead.