A) Is increased by 4 times
B) Is increased by 16 times
C) Is increased by 8 times
D) Remains unchanged
Correct Answer: B
Solution :
[b] The work done\[=force\text{ }\times \text{ }displacement\] \[\therefore \,\,\,\,\,unit,\,\,{{\mu }_{1}}=Fs\] and \[{{\mu }_{2}}=4F\times 4s=16u.\]
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