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Find the MA of first-order lever of leng...

Find the MA of first-order lever of length 50 cm, if the fulcrum is exactly midway between the effort and load.

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The correct Answer is:
A
If fulcrum is exacty midway between effort and load, then

`MA=("Effort arm")/("Load arm")=(25)/(25)=1`
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Knowledge Check

  • if the first overtone of a closed pipe of length 50 cm has the same frequency as the first overtone of an open pipe, then the length of the open pipe is

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