MCQ
Size of a microorganism is $0.00000079\ m.$ Express it into standard form:
- A$7.9 \times 10^{-3}$
- ✓$7.9 \times 10^{-7}$
- C$7.9 \times 10^{-9}$
- D$7.9 \times 10^{-5}$
✓
Answer
Correct option: B.
$7.9 \times 10^{-7}$
B. $7.9 \times 10^{-7}$
Solution:
$0.00000079 = 7.9 \times 10^{-8}$
$= 7.9 \times 10 \times 10^{-8}$
$= 7.9 \times 10^{-7}$
Solution:
$0.00000079 = 7.9 \times 10^{-8}$
$= 7.9 \times 10 \times 10^{-8}$
$= 7.9 \times 10^{-7}$
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