"supersonic"
This is usually called ultrasonic.
All wavelengths outside the range of 380 - 750nm are invisible to the human eye.
Because in the mountain range there have lack of oxygen for our breathing
Light is the portion of electromagnetic radiation that is visible to the human eye, responsible for the sense of sight. Visible light has a wavelength in a range from about 380 or 400 nanometers to about 760 or 780 nm, with a frequency range of about 405 THz to 790 THz.
The highest point in the range is the summit of Mt. Lemmon at 9,157 ft above sea level.
Red, Blue and Green given out the white light for human species. Human is "Trichromacy". It means we have 3 type of receptors response to red, blue and green light. Only 3 colours responses at different degree translated by out brain to see whole spectrum of light as it is. For a true white light, it is the black body radiation of temperature 5000 - 6000 K and complete range of spectrum according to that temperature.
The opposite of ultrasound (above the human hearing range) is infrasound (below the human hearing range).
Infrasound ( below the range of human hearing ) Sonic Range ( within the range ofhuman hearing ) Ultrasound ( above range of human hearing )
Ultrasound is sound with a frequeny above the range of human hearing.(Above 20 000Hz)
Sound waves with frequencies above the normal human range of hearing are called ultrasoundUltrasoundUltrasonic for frequencies higher than a human can hear, and infrasonic for those frequencies below the human threshold of hearing.
Sound waves with frequencies above the normal human range of hearing are called ultrasoundUltrasoundUltrasonic for frequencies higher than a human can hear, and infrasonic for those frequencies below the human threshold of hearing.
Ultasound
Ultrasound is sound above the range of human hearing, Sonic(20 to 20,000Hz) Human Hearing Range Sub-Sonic(20,000Hz) Ultrasonic velocity is the speed in which sound propogates in a certain material. It depends on material density & elasticity. Velocity is constant for a given material. Ultrasound is sound above the human hearing range. Sonic(20 to 20,000Hz) human hearing range, Sub-sonic(20,000Hz). Ultrasonic velocity is the speed in which sound travels through a given material. It is affected by density and elasticity. Velocity remains constant in a given material.
if the vibration is above the range of human hearing which is about 20khz
the hearing range of human being is from 20hz to 20000hz
they have different hearing range
Ultrasonography
they have different hearing range