A particle of mass m attached to the end of string of length l is released from the horizontal position. The particle rotates in a circle about O as shown When it is vertically below O, the string makes contact with a nail N placed directly below O at a distance h and rotates around it. For the particle to swing completely around the nail in a circle.

A particle of mass m attached to the end of string of length l is rele

1.	A particle of mass m attached to the end of string of length l is released from the horizontal position. The particle rotates in a circle about O as shown When it is vertically below O, the string makes contact with a nail N placed directly below O at a distance h and rotates around it. For the particle to swing completely around the nail in a circle.
Answer» `h lt(3)/(5)L` `h GE(3)/(5)l` `h lt (2)/(5)l` `h ge (2)/(5)l` ANSWER :B

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