A block is kept on an inclined plane of inclination $\theta$ of length l. The velocity of particle at the bottom of inclined is (the coefficient of friction is $\mu$)
  • A$\sqrt {2gl(\mu \cos \theta - \sin \theta )} $
  • B$\sqrt {2gl(\sin \theta - \mu \cos \theta )} $
  • C$\sqrt {2gl(\sin \theta + \mu \cos \theta )} $
  • D$\sqrt {2gl(\cos \theta + \mu \sin \theta )} $
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