CBSE Study Material 2021-22 for 8th, 9th, 10th, 11th and 12th.
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💡 SCIENTIFIC INSTRUMENTS

♦️ Altimeter:- Measures altitudes.

♦️ Ammeter:- Measures electric current.

♦️ Anemometer:- Measures force and velocity of wind and directions.

♦️ Audiometer:- Measures intensity of sound.

♦️ Barograph:- Continuous recording of atmospheric pressure.

♦️ Barometer:- Measures atmospheric pressure.

♦️ Binoculars:- To view distant objects.

♦️ Bolometer:- To measure heat radiation.

♦️ Callipers:- Measure inner & outer diameters of bodies

♦️ Calorimeter:- Measures quantities of heat

♦️ Cathetometer:- Determine heights, measurements of levels, etc. in scientific experiments.

♦️ Chronometer:- Determines longitude of a vessel at sea

♦️ Colorimeter:- Compares intensity of colours.

♦️ Commutator:- To change the direction of electrica current.

♦️ Cryometer:- A type of thermometer used to measure very low temperature, usually close to 0° C.

♦️ Dilatometer:- Measures changes in volume substance.

♦️ Dynamo:- Converts mechanical energy into electrical energy.

♦️ Dynamometer:- Measures electrical power.

NCERT Study Material 2021-22 for 8th, 9th, 10th, 11th and 12th.
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