Question

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 1

Answer is (B) 0.5 ≤ A < 5