Scientific Instruments - বৈজ্ঞানিক ষন্ত্রপাতি

 ● Scientific Instruments ●

◆ Actinometer : Device that measure the intensity of radiation .

◆ Ammeter : Instrument to measure the strength of an electric current .

◆ Audiometer : Instrument to measure difference in hearing .

◆ Barometer : Instrument used for measuring atmospheric pressure .

◆ Binoculars : Optical instrument designed for magnified view of distant objects by both eyes simultaneously .

◆ Cryometer : Device that measures very low temperature .

◆ Endoscope : Instrument for  examine hollow organ .

◆ Electrometer : Device that measures potential difference and charge .

◆ Galvanometer : Instrument for measuring electric current .

◆ Lactometer : Instrument for measuring relative density of milk .

◆ Otoscope : Instrument for examine the eardrum .

◆ Pyknometer : Instrument used for measure the density and coeffieient of expansion of a liquid  .

◆ Rain Gauge : Instrument for measuring rainfall

◆ Seismograph : Instrument for recording intensity and  origin of earthquake shocks  .

◆ Stethoscope : Instrument for hearing and analysing the sound of heart and lungs .

◆ Variometer : Device for measuring the rate of climb or descent of an aircraft .

◆ Voltmeter : Instrument to measure potential difference between two point .