Scientific Instuments and Appliances-4

Quadrant is an instrument to measure altitudes and angles in navigation and astronomy.
2.Quartz clock:
Quartz clock is a highly accurate clock used in astronomical observations and other precision work.
Radar is used for detecting and finding the range of moving objects by transmitting beams of radio waves.
4.Radio micrometer:
Radio micrometer is an instrument for measuring heat radiations.

5.Rain gauge:
Rain gauge is an instrument for measuring rainfall.
Refractometer is an instrument used to measure the refractive index of a substance.
7.Resistance thermometer:
Resistance thermometer is used for determining the electrical resistance of conductor.
Saccharimeter is an instrument for determining the amount of sugar in a solution.
Seismometer is an instrument used for recording the intensity and origin of earthquake shocks.
Sextant is an instrument used for measurement of angular distances between two objects.

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