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Q

Confused! kindly explain, Which of the following is not a unit of time?

Which of the following is not a unit of time?

  • Option 1)

    Micro second
     

  • Option 2)

    Leap year

  • Option 3)

    Lunar month

  • Option 4)

    Parallactic second

 
Answers (1)
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As we learnt in 

Units of Time -

1 year                 365.25 days        3.156 x 107 Sec

Lunar Month    1 Lunar Month = 27.3 days (it is the time taken by the moon to complete1 revolution around the earth in its orbit)

1 Average Solar Day    1/365.25 the part of solar year

 

-

 

Parallactic second


Option 1)

Micro second
 

Option is incorrect

Option 2)

Leap year

Option is incorrect

Option 3)

Lunar month

Option is incorrect

Option 4)

Parallactic second

Option is correct

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