Hello brother on your demand I am providing you general knowledge questions on physics with their answers

1. Which instrument is used to measure altitudes in aircraft’s?
Audiometer
Ammeter
Altimeter
Anemometer
Answer: Option C

2. Which instrument is used to measure depth of ocean ?
Galvanometer
Fluxmeter
Endoscope
Fathometer
Answer: Option D

3. Name of the instrument to measure atomspheric pressure ?
Barometer
Barograph
Bolometer
Callipers
Answer: Option A

4. Which instrument is used to measure the power of electric circuit ?
Voltmeter
Wattmeter
Wavemeter
Viscometer
Answer: Option B

5. Which instrument is used in submarine to see the objects above sea level ?
Pykometer
Polygraph
Photometer
Periscope
Answer: Option D

6. Which instrument is used to measure curvature of spherical objects ?
Spectroscope
Spherometer
Spectrometer
Sextant
Answer: Option B

7. Which instrument is used to record physical happenings at a distant place ?
Thermostat
Tonometer
Telemeter
Transponder
Answer: Option C

8. Which instrument is used to measure the scattering of light by particles suspended in a liquid ?
Nephetometer
Ohmmeter
Ondometer
Pyrometer
Answer: Option A

9. Which instrument is used to determine the intensity of colours ?
Cathetometer
Chronometer
Colorimeter
Commutator
Answer: Option C

10. Which instrument is used to measure changes in volume of substances ?
Dyanamo
Dilatometer
Cyclotron
Electroscope
Answer: Option B

11. Which instrument is used to measure sound under water ?
Hygrometer
Hygroscope
Hypsometer
Hydrophone
Answer: Option D

12. Which instrument is used to measure pressure of gases ?
Manometer
Machmeter
Magnetometer
Micrometer
Answer: Option A

13. Which instrument is used to measure heat radiation ?
Radar
Salinometer
Refractometer
Radio micrometer
Answer: Option D

14. Which instrument is used to measure strength of direct current ?
Stroboscope
Streoscope
Tangent Galvanometer
Tachometer
Answer: Option C

15. K. Macmillan invented
Bicycle
Barometer
Calculating Machine
Centigrade Scale
Answer: Option A

16. Thomas Alva Edison invented
Cinema
Cine Camera
Computer
Cinematograph
Answer: Option D

17. Alfred Nobel invented
X ray
Diesel Engine
Dynamite
Dynamo
Answer: Option C

18. David Hughes invented
Machine Gun
Microphone
Microscope
Motorcycle
Answer: Option B

19. Marie and Pierre Curie invented
Radio
Radium
Radar
Refrigerator
Answer: Option B

20. Alexander Graham Bell invented
Telephone
Telescope
Television
Tank
Answer: Option A