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 or