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Scientific Instrument


13. 

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

List I List II
a) Radar is used to 1) determine humidity of air
b) Hygrometer is 2) Determine the light intensity
c) Photometer is 3) Determine the purity of milk
d) Lactometer is 4) detect flying object

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

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14. 

Instrument used to measure earthquake shocks

Answer : D. seismometer

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15. 

The purity of milk is measured with

Answer : B. Lactometer

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16. 

Photometer are instruments used to measure

Answer : C. intensity comparison between different light sources

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17. 

Which instrument can be used to determine the thickness of a piece of paper?

Answer : B. Screw gauge

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18. 

Which one of the following can be used to confirm whether drinking water contains a gamma emitting isotope or not?

Answer : C. Scintillation Counter

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