Physics · 2013
NEET 2013 · 5 May · Code W · Q5
The upper half of an inclined plane of inclination θ is perfectly smooth while lower half is rough. A block starting from rest at the top of the…
The upper half of an inclined plane of inclination $\displaystyle \theta$ is perfectly smooth while lower half is rough. A block starting from rest at the top of the plane will again come to rest at the bottom, if the coefficient of friction between the block and lower half of the plane is given by :
Official answer
(3)
$\displaystyle \mu=2 \tan \theta$
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NEET (UG) 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.