Physics · Units and Measurements
'ल्यूमेन' (Lumen) निम्नलिखित में से किसका मात्रक है?
- 1चुंबकीय फ्लक्स का
- 2प्रदीप्ति घनत्व का
- 3ज्योति फ्लक्स का✓
- 4ज्योति तीव्रता का
सही उत्तर देखें
ज्योति फ्लक्स का
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