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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

A. a-3 ,b-1 ,c-2 ,d-4 B. a-4 ,b-1 ,c-2 ,d-3 C. a-2 ,b-3,c-4 ,d-1 D. a-1 ,b-2 ,c-3 ,d-4

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

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14. 

Instrument used to measure earthquake shocks

A. Anemometer B. Pyrometer C. Hygrometer D. seismometer

Answer : D. seismometer

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15. 

The purity of milk is measured with

A. barometer B. Lactometer C. Galvanometer D. Hygrometer

Answer : B. Lactometer

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16. 

Photometer are instruments used to measure

A. thermal radiations B. electrical intensity C. intensity comparison between different light sources D. distances

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?

A. Vernier Callipers B. Screw gauge C. Spherometer D. Spectrometer

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?

A. Microscope B. Lead plate C. Scintillation Counter D. Spectrophotometer

Answer : C. Scintillation Counter

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