1. Which one of the following units is the smallest ?

  1. X-unit
  2. Nicron
  3. Fermi
  4. Angstrom
View Answer

Answer: Option(C).


Memory: The fermi (fm) is a unit of length in the International System of Units, defined as 10−15meter using the SI prefix system. The unit was traditionally used for measuring the dimensions of atomic nuclei .

2. Which one among the following statements is not correct ?

  1. Unit of length: Meter
  2. Unit of mass: Kilogram
  3. Unit of temperature: Kelvin
  4. Unit of time: hour
View Answer

Answer: Option(D).


Memory: Option (d) is correct. As unit of time in all system is second.

3. How many dynes are there in one gram weight ?

  1. 855
  2. 999
  3. 275
  4. 981
View Answer

Answer: Option(D).


Memory: No memory available.

4. One nano-meter equals to

  1. 10-18
  2. 10-12
  3. 10-9
  4. 10-2
View Answer

Answer: Option(C).


Memory: No memory available.

5. How many supplementary units are there in SI system ?

  1. Three
  2. Five
  3. One
  4. Two
View Answer

Answer: Option(D).


Memory: There are two supplementary units in SI system which are, 1. Radian 2. Steredian.

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