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KCET2009PhysicsMathematics in Physics

The number of significant figures in the numbers 4.8000 10⁴ and 48000.50 are respectively

Options

  1. A5 and 6
  2. B5 and 7
  3. C2 and 7
  4. D2 and 6

Correct answer

B. 5 and 7

Step-by-step solution

The number of significant figures in 4.8000 10⁴ is 5 (zeros on right after decimal are counted while zeros in powers of 10 are not counted). The number of significant figures in 48000.50 is 7 (all the zeros between two non-zero digits are significant).

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