Logarithms MCQ Questions and Answers Quiz

11. John Napier prepared the logarithms tables to the base

  1. 1
  2. 10
  3. e

12. log e = ............ where e is equivalent to 2.718

  1. 0.4343
  2. infinity
  3. 1

13. log mn can be written as

  1. (log m)n
  2. m log n
  3. n log m
  4. log (m n)

14. log23 in common logarithm is written as

  1. log 3 / log 2
  2. log 2 / log 3
  3. log 3 / 2
  4. log 23

15. logam + logan is same as:

  1. loga(m + n)
  2. loga(m x n)
  3. logam x logan
  4. loga(m/n)

16. logba × logcb can be written as

  1. logca
  2. logac
  3. logab
  4. logbc

17. loge 10 is

  1. 2.3026
  2. 0.4343
  3. e10
  4. 10

18. logyx will be equal to

  1. logzx / logyz
  2. logxz / logyz
  3. logzx / logzy
  4. logzy / logzx

19. logp – logq is same as:

  1. log(q/p)
  2. log(p-q)
  3. logp/logq
  4. log(p/q)

20. The decimal part of the common logarithm of a number is called the

  1. Characteristic
  2. Mantissa
  3. Logarithm
  4. None
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