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NEET Exam Model Paper 11

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Question : 1

Total: 180

In which of the following instrument used in the lab there exists an error of random category known as back lash error;
(i) Screw gauge
(ii) Micrometer
(iii) Searle’s apparatus
(iv) Vernier calipers

(i) and (ii) only
(i) ,(ii) and (iii) only
(i) only
All four

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