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Scientific Instrument


19. 

The instrument used for measuring the force and velocity of wind is

Answer : C. Anemometer

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20. 

Match List I correctly with List II and select your answer using the codes given below

List I List II
a) Hydrometer 1) current
b) Barometer 2) atmospheric pressure
c) Calorimeter 3) Density of Liquid
d) Ammeter 4) quantity of heat

Answer : B. a-3 ,b-2 ,c-4 ,d-1

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21. 

Sonometer can be used to determine

Answer : D. the frequency of a tuning fork

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22. 

the device used to measure voltage,current and resistance is called

Answer : D. A multimeter

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23. 

Hydrometer is used to measure?

Answer : D. specific gravity of liquids

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24. 

The apparatus used in submarines to give clear view of the objects on the surface of the ocean or ground is known as

Answer : A. Periscope

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