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प्रश्न
The force of attraction between two masses each of 1 kg kept at a separation of 1 m is :
विकल्प
9.8 N
6.7 N
980 N
6.7 × 10-11 N
उत्तर
The force of attraction between two masses each of 1 kg kept at a separation of 1 m is : 6.7 x 10-11 N
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