Physics · Standards of Measurement
Which one of the following statements is correct regarding standards of measurements?
- 1Working standards are used by manufacturers for comparing and standardizing their products.✓
- 2The secondary standards are absolute standards and are not as accurate as international standards.
- 3The secondary standards are preserved at the 'International Bureau of Weights and Measures' and are not available to ordinary users.
- 4The primary standards are as accurate as the international standards.
Correct answer
Working standards are used by manufacturers for comparing and standardizing their products.
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