Physics · Scientific Instruments
कैरेटोमीटर का उपयोग किसका पता लगाने के लिए किया जाता है?
- 1प्रकाश की तीव्रता
- 2रक्तचाप
- 3सोने की शुद्धता✓
- 4हृदय की ध्वनि
सही उत्तर देखें
सोने की शुद्धता
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