Question

. The standard measurements are maintained by

a. National Standard Laboratory

b. National Chemical Laboratory

c. National Physical Laboratory

d. none of the above​

Answer 1

Answer:

d none of the above

Explanation:

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Answer 2

here is the correct answer

The CSIR- National Physical Laboratory of India,

explain

The CSIR- National Physical Laboratory of India, situated in New Delhi, is the measurement standards laboratory of India. It maintains standards of SI units in India and calibrates the national standards of weights and measures.