railway RRB ALP (CBT 1 + CBT 2 + CBAT) Mock Test Series 2025 (New) General Science Physics Physical Quantities

1 परमाणु द्रव्यमान इकाई या 1 डाल्टन = ____ kg.

1
1.66×10 -27 kg
2
1.66×10 -28 kg
3
1.66×10 -29 kg
4
1.66×10 -30 kg
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