60 A glass slide 15 cm long 2 cm thick is suspended from the

Last updated: 6/9/2023

60 A glass slide 15 cm long 2 cm thick is suspended from the arm of a balance with its lower edge horizontal and equibalanced Now the slide is dipped in the soap solution and is raised such that the lower end just touches the surface of the soap solution If now a block of 400mg has to be placed in the other having unknown surface tension then what will be the value of surface tension of solution a 1 1 x 10 N m c 1 10 x 10 N m b 1 1 N m d None of these