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NEET Sample Paper NEET Sample Test Paper-71

  • question_answer
    In CGS system the magnitude of the force is 100 dynes. In another system where the fundamental physical quantities are kilogram, metre and minute, the magnitude of the force is

    A) 0.036               

    B) 0.36

    C) 3.6                               

    D) 36

    Correct Answer: C

    Solution :

    \[{{n}_{2}}={{n}_{1}}\,{{\left( \frac{{{M}_{1}}}{{{M}_{2}}} \right)}^{1}}\,{{\left( \frac{{{L}_{1}}}{{{L}_{2}}} \right)}^{1}}\,{{\left( \frac{T}{{{T}_{2}}} \right)}^{-2}}\] \[=\,\,\,100{{\left( \frac{gm}{kg} \right)}^{1}}\,{{\left( \frac{cm}{m} \right)}^{1}}\,{{\left( \frac{\sec }{\min } \right)}^{-2}}\] \[=\,\,\,\,100{{\left( \frac{gm}{{{10}^{3}}\,gm} \right)}^{1}}\,{{\left( \frac{cm}{{{10}^{2}}\,cm} \right)}^{1}}\,{{\left( \frac{\sec }{60\,\sec } \right)}^{-\,2}}\] \[{{n}^{2}}=\frac{3600}{{{10}^{3}}}=3.6\]


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