Scientific Instruments

1. An instrument used  for detecting the direction and range of an approaching plane by means of radio microwaves.- Radar 

2.An instrument used to measures the amount of sugar in the solution.- Saccharimeter 

3. An instrument to measure the speed, direction and pressure of the wind is called- Anemometer 
4. An instrument used to measure difference in hearing is called - Audiometer 
5. An instrument to measure atmospheric pressure and conditions is called - Barometer 
6. An instrument used to measure potential difference between two points is called - Voltmeter 
7. An optical instrument used for magnified view of distant objects is called-Binoculars 
8. An instrument used to measure the diameters of wire, tube or rod is called-Calipers 
9. An instrument used to measure quantities of Heat is called - Calorimeter 
10. An apparatus used for charging air with petrol vapours in an internal combustion engine is called – Carburettor 
11. An instrument used for measuring the temperature of the human body is called-Thermometer 
12. A device which converts mechanical energy into electrical energy is called- Dynamo 
13. An instrument used for measuring electrical potential differences is called- Electrometer 
14. An instrument used for detecting the presence of electric charge is called- Electroscope 
15. An instrument used for measuring Electric Current is called - Galvanometer
16. An instrument used for measuring depth of the ocean is called - Fathometer 
17. An instrument used for relative density of liquids is called - Hydrometer 
18. An instrument used for relative density of milk is called - Lactometer 
19. An instrument used for magnified view of very small objects is called - Microscope 
20. An apparatus used in submarines for viewing objects 
lying above the eye level of the observer is called - Periscope 
21. An instrument used for comparing the luminous intensity of two sources of light is Called - Photometer 
22. An instrument used to measure high temperature is called - Pyrometer 
23. An instrument used to measure Rainfall is called - Rain Gauge

24. An instrument used for recording the intensity and origin of earthquakes shocks is called – Siesmograph
25. An instrument used for measuring angular distance between two objects is called - Sextant 
26. An instrument used for measuring speed of the vehicle is called - Speedometer 
27. An apparatus used for converting high voltage to low and vice-versa is called- Transformer 
28. An instrument that continuously records a barometer's reading of atmospheric pressure. - Barograph 
29. An instrument used to measure infrared, or heat, radiation. - Bolometer 
30. An instrument used for measuring growth in plants.- Crescograph 
31. An instrument used for tracing movement of heart.- Cardiograph 
32. A clock that keeps very accurate time and determines longitude of a vessel at sea. - Chronometer 
33. An instrument used to examine internal parts of the body. - Endoscope 
34. A glass tube for measuring volumes changes in the chemical reactions between gases -Eudiometer 
35. A machine for reproducing recorded sound. - Gramophone 
36. An instrument used to measure the moisture content or the humidity of air or any gas. - Hygrometer 
37. A microphone designed to be used underwater for recording or listening to underwater sound.- Hydrophone 
38. A device used to measure atmospheric pressure - Manometer 
39. A device which converts sound waves into electrical signals. - Microphone 
40. An instrument attached to the wheel of a vehicle, to measure the distance traversed. - Odometer 
41. An instrument used for reproducing sound.- Phonograph 
42. An instrument used for measuring Solar radiation is called - Pyrheliometer 
43. An instrument used for taking angular measurements 
of altitude in astronomy and navigation is called - Quadrant 
44. An instrument for measuring a Refractive Index of a substance is called - Refractometer .
45. An instrument used for Spectrum analysis is called- Spectroscope 
46. An instrument for measuring blood pressure is called - Sphygmomanometer 
47. An instrument for measuring and indicating temperature is called - Thermometer 
48. A medical instrument used for hearing and analyzing the sound of Heart is called - Stethoscope

49. An instrument used in aircraft for measuring altitudes is called - Altimeter 
50. An instrument used to measure the strength of an electric current is called - Ammeter