11th Class Physics Past Paper MCQS 2019 Group 1 Lahore Board

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Question 1 of 17

Base units of spring constant is:

\[kg{s^{ - 2}}\]

\[kg\,\,m{s^{ - 2}}\]

\[k{g^{ - 1}}{s^{ - 2}}\]

\[k{g^{ - 1}}m{s^{ - 2}}\]