EM waves cannot be used in SONAR because water is a conducting medium and thus EM waves would get shorted
The same ones used in the camera for taking the pictures, usually the visible light spectrum waves. Some older autofocusing systems (e.g. one used on some Polaroid instant cameras) used a SONAR ranging system, which used sound waves not electromagnetic waves.
Electromagnetic waves.
sonar can not be used outside water it is used under water to transmit sound waves through ultrasonic pulses
1) sonar waves are used for underwater surceillance and measurements (depth) 2)visualising images in utero-ULTRASONOGRAPHY. 3)sonar is used for treatment in physiotherapy
As the name suggests, sonar uses sonic waves (sound). Typically, sonars use sounds with frequencies inaudible to human ear.Another answer:Actually, sonar uses a wide range of frequencies. Very low frequencies (100 Hz to 1 kHz) are used for long range detection and deep sea floor sounding. Midrange frequences (1 kHz to 10 kHz) are used for target identification. Ultrasonic frequencies (50 kHz and up) are used in navigation and commercial sonar devices like fish finders.
The same ones used in the camera for taking the pictures, usually the visible light spectrum waves. Some older autofocusing systems (e.g. one used on some Polaroid instant cameras) used a SONAR ranging system, which used sound waves not electromagnetic waves.
No.
Electromagnetic waves.
sonar is a device used underwater for locating submerged objects and for submarine communication by means of sound waves.
sonar can not be used outside water it is used under water to transmit sound waves through ultrasonic pulses
radio waves
1) sonar waves are used for underwater surceillance and measurements (depth) 2)visualising images in utero-ULTRASONOGRAPHY. 3)sonar is used for treatment in physiotherapy
The waves are called "electromagnetic waves". All types of EM waves can be used to study the Universe.
Basically, some kind of electromagnetic radiation is used: radio waves, light, etc.Basically, some kind of electromagnetic radiation is used: radio waves, light, etc.Basically, some kind of electromagnetic radiation is used: radio waves, light, etc.Basically, some kind of electromagnetic radiation is used: radio waves, light, etc.
As the name suggests, sonar uses sonic waves (sound). Typically, sonars use sounds with frequencies inaudible to human ear.Another answer:Actually, sonar uses a wide range of frequencies. Very low frequencies (100 Hz to 1 kHz) are used for long range detection and deep sea floor sounding. Midrange frequences (1 kHz to 10 kHz) are used for target identification. Ultrasonic frequencies (50 kHz and up) are used in navigation and commercial sonar devices like fish finders.
Electromagnetic waves(Radio waves)
Radio waves.