1.

The magnitude of any physical quantity can be expressed as A x 10n where n is a number called order of magnitude and A is (A) 0.1 ≤ A < 1 (B) 0.5 ≤ A < 5 (C) 5 ≤ A < 9 (D) 1 ≤ A > 9

Answer»

Answer is (B) 0.5 ≤ A < 5 



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