9th Class Science Force and laws of motion Question Bank MCQs - Force and Laws of Motion

  • question_answer
    1 dyne is equal to

    A) \[{{10}^{5}}\] N                

    B) \[{{10}^{7}}\]N

    C) \[{{10}^{-5}}\] N               

    D) \[{{10}^{-7}}\]N

    Correct Answer: C

    Solution :

    [c] Dyne is the unit of force in CGS system.
    \[1N=\frac{1kg-m}{{{s}^{2}}}=\frac{1000g\times 100\operatorname{cm}}{1\ {{s}^{2}}}\]
    \[1\ dyne=\frac{1}{{{10}^{5}}}\operatorname{N}={{10}^{-5}}\operatorname{N}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner