Find log_10(0.00001).
Aptitude
Logarithm
Difficulty: Easy
Choose an option
-
A-5
-
B-6
-
C-7
-
DNone of these
Answer
Correct Answer: -5
Explanation
Introduction / Context:Recognize small decimal powers as powers of 10 to evaluate common logarithms directly.
Given Data / Assumptions:0.00001 = 10^{−5}.
Concept / Approach:Use log_10(10^k) = k.
Step-by-Step Solution:
log_10(0.00001) = log_10(10^{−5}) = −5Why Other Options Are Wrong:−6, −7 represent incorrect counting of decimal places.
Final Answer:−5