A wave's frequency is the number of cycles that are completed in a certain amount of time. The symbol for frequency is the lowercase f and we measure it in cycles per second, which is the same as the unit hertz. A wave with a frequency of 20 Hz completes 20 wave cycles every second.Be careful that you don't confuse frequency with period. This is a common mistake. wave is a disturbance that travels through a medium in a periodic fashion, carrying energy without transporting matter. Waves are described and measured by five wave parameters: the period, the frequency, the amplitude, the wavelength, and the speed.
Quick Answer. It takes three to five hours for the effects of novocaine and other local dental anesthetics to wear off completely, according to Jonathan G. Campbell, D.D.S. The tooth remains numb for one to two hours, while the tongue and lips remain numb for up to five hours. Continue Reading.
Report Abuse. There is no way to make it wear off faster. It should go away in a few hours. Good idea not to have hot soup while numb. Next time you go to the dentist ask him if he has any other Novocain.There are different carpules that the effects wear off faster for next time. There is Lidocaine, Carbocaine out there for use also.eport Abuse. There's no quick way to make the numbness go away sooner than it's going to. As for eating/drinking soup, warm it up so it's just lukewarm, then sip it. Do not use a straw, especially if you had a tooth extraction. Sip some warm soup & some warm tea if you like it.