Dear Students, As SSC CGL Tier-I 2017 is going to be conducted in the month of June/July. For GA Part will are providing all types of topics and notes. Today, in this post we are providing to you study Notes on “Scientific Instruments” for SSC CGL Exam. Sometimes questions are asked from this topic as well, So memorize all these names and score better in the exam.
Scientific Instruments
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Name of instrument
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Function
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Ammeter
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Used for measuring strength of electric current
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Barometer
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Used for measuring atmospheric pressure
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Calorimeter
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Used for measuring quantities of heat
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Cardiograph (ECG)
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Used for measuring movements of the heart ; recorded on a cardiograph
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Dynamo
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Converts mechanical energy into electrical energy
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Electroencephalograph (EEG)
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Records and interprets the waves of the brain
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Electrometer
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Used for measuring very small electrical potential difference
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Endoscope
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Examines internal organs of the body and can be used for minor surgical procedures
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Fathometer
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Used for measuring depth of the ocean
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Galvanometer
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Used for measuring small electrical current
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Hydrometer
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Used for measuring the relative density of liquids
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Hygrometer
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Used of measuring the relative humidity in the atmosphere
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Kymograph
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Graphically records physiological movements (e.g. blood pressure/heartbeat)
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Lactometer
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Used for measuring the relative density of milk to determine the purity (fat content)
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Manometer
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Used for measuring the pressure of gases
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Micrometer
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Measures small distance
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Microscope
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Used for obtaining a magnified view of small objects
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Periscope
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Used of viewing objects above sea level (used in submarines)
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Polygraph
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Used for recording changes, simultaneously in physiological processes such as heart beat, blood pressure and respiration also used as a lie detector
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Pyrometer
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Used for measuring very high temperature
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