A) 16 watts
B) \[\frac{1}{16}\]watts
C) 25 watts
D) \[\frac{1}{25}\]watts
Correct Answer: B
Solution :
[b] \[1\text{ }sec*=5\text{ }sec,\text{ }1kg*=20\text{ }kg,\text{ }1m*=10m\] \[1\,watt=1kg\,{{m}^{2}}{{\sec }^{-3}}\] \[=\frac{1}{20}kg*{{\left( \frac{1}{10}m* \right)}^{2}}{{\left( \frac{1}{5}\sec * \right)}^{-3}}\] \[=\frac{1}{20}\times \frac{1}{100}\times 125kg*m{{*}^{2}}\sec {{*}^{-3}}=\frac{1}{16}watt*\]
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