enmobladatn
2022-07-23
Kitamiliseakekw
Beginner2022-07-24Added 23 answers
It is reasonable to assume that moving charges create an electric field, which as it begins to move like a wave creates a magnetic field, which is typical in comparison to the electric field. These two combined create electromagnetic waves, which are the spectrum of radiation.
There are many different radiations which are not the same in their length of waves and frequency. As the spectrum progresses from radio waves, over microwaves, than IR, visible light, Uv, than X-rays to the last gamma rays.
They are all of the same spectrum which as it progresses, the lengths of waves are dropping while frequency rises, which means that radio waves which are first in the spectrum have greatest lengths of waves but the frequency lesser compared to any other radiation. As radio waves are first, light is around the middle and X are near the end, we can conclude from the previous assumptions that radio waves have greatest lengths of waves.
A person is sitting away from a sound source. What is the time interval at which successive compressions pulses from the source reach him?
Sound waves with frequency smaller than 20 Hz are called:
ultrasound
infrasound
nanosound
minisound
Why is momentum conserved?
What type of wave travels slower through gases than it does through solids?
Which of the following is an example of longitudinal wave?
What are the properties of sound waves?
What are some examples of resonance.
If the amplitude of a sound in doubled, then the loudness increases:
A)Remains same
B)Increases three times
C)Increases four time
D)Increases two times
1 db is equal to how many hertz?
How do sound waves travel in air medium?
What is the period of the Great Clock's, Big Ben, pendulum.
Sound waves with a frequency of 20 Hz to 20,000 Hz are called_______. A. Audible sounds B. Inaudible sounds C. Infrasonics D.Ultrasonics
Do all EM waves travel at same speed?
What is the wavelength of light (nm) that has a frequency ?
A.
B.
C.
D.
A person has a hearing range from to . What are the typical wavelengths of sound waves in air corresponding to these two frequencies? Take the speed of sound in air as .