Eshan sir...TensionT(h)= m(h/l)gHow sir h/l is coming.I did not understand please explain sir.

Dear Raju,

Tension at any point is balancing the weight of the rope below it.
The mass per unit length of the rope can be written as
Hence the mass of part of rope hanging uptil lengthwill be

Hence the weight of that part will be.

Or you could see it this way- The fraction of length the given part is of the whole rope, in the same fraction would be its mass.

Hence

Approved