Define SONAR, LASER and RADAR methods.

1.	Define SONAR, LASER and RADAR methods.
Answer» SONAR stands for Sound Navigation And Ranging. On a SONAR, ultrasonic waves are used. It is used to find submarines in the oceans and seas.RADAR stands for Radio Detection And Ranging. This method used for long distances.LASER stands for Light Amplification by Stimulated Emmision of Radiation. This method is also used to measure long distances. Example-the distance of moon.

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