### Scientific Notation and Logarithm

 1. What is scientific notation?a) Very large numbers like 50000000000000 or very small numbers like 0.30000000000000 can be written in simplified form like in case of large numbers 5 x 1013 and in case of small numbers 3 x 10-13b) Very large numbers like 50000000000000 or very small numbers like 0.30000000000000 can be written in simplified form like in case of large numbers 5 x 10-13 and in case of small numbers 3 x 1013
 2. What is logarithm?a) The bae value of log can alo be other then 10 b) All are correctc) Example: 2 is the logarithm of 100 to the base 10. Log of 100 would be 2 ie 100 = 102. The exponent is the log value.d) The exponent of the power to which a base number must be raised to equal a given number.
 3. 1000 in scientific notation will have value :a) 1 X 103 b) 1 X 105c) 1 X 104d) 1 X 102
 4. In scientific notations a number is represented as product of _________a) four numbersb) three numbersc) two numbers
 5. If the movement of decimal point from original position is right wards the exponent is ____________a) positiveb) neegative
 7. _______________ was one of the great Muslim mathematicians of his timea) Abu-Muhammad Musa Al-khawarizmib) John Napierc) Jobst Burgi
 8. In 1620 a mathematician _________ of Switzerland developed an antilogarithm tablea) John Napierb) Jobst Burgic) Abu-Muhammad Musa Al-khawarizmi
 9. Mathematician ___________ invented logarithms to tablea) Abu-Muhammad Musab) John Napierc) Jobst Burgi
 10. The logarithms to the base e are called _____________a) natural logarithmsb) logarithmsc) natural or Naperian logarithms
 11. The logarithms to base 10 are called ____________a) Birggs logarithmsb) common or Birggs logarithmsc) Common logarithms
 12. The integral part of the logarithm of any number is called the _____________a) denominatorb) nominatorc) characteristics
 13. The fractional part of the logarithm of any number is called the ______________a) denominatorb) mantissac) characteristics
 14. Mantissa is always __________a) positiveb) nogativec) nogative or positive
 15. The characteristic of the logarithm of any number is equal to the logarithm power of ______a) 100 b) 10c) 32d) 23
 16. The place between the first non-zero digit and its next digit to the left side of given number is called the ________ positiona) zero b) positivec) referenced) chracteristic
 17. Reference position is represented by symbol __a) * b) !c) ^d) '
 19. If the decimal point is on the right side of the reference position then characteristic will be ___________a) positiveb) negativec) zero
 20. If the decimal point is on the left side of the reference position then characteristic will be __________a) negativeb) zeroc) positive
 21. At the time of taking mantissa we ________a) do not ignore the decimal pointb) ignore the decimal point
 22. To find out the mantissa of 225 we will make it into ___ digitsa) 4b) 2c) 3
 23. We need ___ digits to find mantissaa) 1b) 4c) 2
 24. If log x = y then x is called the a _____a) nti-logarithm of yb) non nti-logarithm of
 26. If the characteristic is zero the decimal point and the reference position will be at the _______ placea) differentb) same
 27. The logarithm of a fraction is equal to the difference of logarithm of the numerator from the logarithm of __________a) nominatorb) denominator
 28. In the logarithm of any number the integral part is called its characteristica) Falseb) True
 29. If log3 = 0.477, then log 9 = 0.8771a) Falseb) True
 30. The mantissa of a logarithm of any number is negativea) Falseb) True
 31. Log 2 = __________a) 0.3010b) 0.1010c) 0.2010
 32. Log 729 = __________a) 2.762b) 2.862c) 2.262
 33. If log10x = 2, then x = _____a) 100b) 10c) 1000
 34. The characteristic of log 19 is _____a) 1b) 0c) 2
 35. Find the cheracteristic of 8a) 4b) 3c) 0
 36. Find the cheracteristic of 25a) 1b) 3c) 2
 37. Find the cheracteristic of 325a) 2b) 2c) 13
 38. Find the cheracteristic of 5050a) 5b) 7c) 3
 39. Find the cheracteristic of 8.882a) 2b) 2c) 0
 40. Find the cheracteristic of 88.8a) 6b) 4c) 1
 41. Find the cheracteristic of 765.3a) 4b) 3c) 2
 42. Find the cheracteristic of 21.65a) 1b) 5c) 3
 43. Find the cheracteristic of 1500a) 4b) 3c) 3
 44. Find the cheracteristic of 400.3a) 5b) 2c) 1
 45. Find the cheracteristic of 22.2a) 2b) 1c) 3
 46. Find the cheracteristic of 2.002a) 1b) 0c) 3
 47. Find the cheracteristic of 0.7835a) 2 b) 1c) -1d) -2
 48. Find the cheracteristic of 0.001329a) -1b) -3c) 0
 49. Find the cheracteristic of 5.7a) 0b) 1c) 2
 50. Write as the difference of logarithm log7.7X8.55a) log7.7/log8.55 b) log7.7+log8.55c) log7.7Xlog8.55d) log7.7-log8.55
 51. Write as difference of logarithm log 2.12 X 3.21a) log2.12 - log3.21 b) log2.12 + log3.21c) log2.12 / log3.21d) log2.12 * log3.21
 52. Write as difference of logarithm log37.5/31.24a) log37.5 - log31.24b) log37.5 + log31.24c) log37.5 x log31.24

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