b. Prelims Paper (GS) Paper – 1

[Sci – tech] following instrument is used to measure intensity of sun-rays

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January 20, 2015 at 7:18 pm #4504
Sneha Sharma
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Which of the following instrument is used to measure intensity of sun-rays ?

(A) Astrometer

(B) Crescograph

(C) Acteometer

(D) Barometer

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January 20, 2015 at 7:19 pm #4506
Sneha Sharma
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Ans to follow tomorrow..
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