Measuring Instruments and Scales play a crucial role in obtaining accurate and reliable data. These tools help scientists and researchers quantify various physical quantities and parameters. Here are some common measuring instruments and scales used in general science :
- Sonar (Sound Navigation And Ranging) with the help of sonar, high frequency ultrasonic waves are sent into the depth of the ocean to know the position of an object submerged in the ocean. These waves collide with the object and return in the form of echo, with the help of which information about the actual position of the object immersed in the ocean is obtained.
- Ringelmann scale is a scale for measuring the apparent density or opacity of smoke.
Question related topic –
Q.1 In SONAR we use – (a) Radio waves (b) Audible sound waves (c) Ultrasonic waves (d) Infrasound waves
Q.2