IIT-JEE 2001 Screening

The pulleys and strings shown in the figure are smooth and of negligible mass. For the system to remain in equilibrium, the angle \(\theta\) should be

A particle executes simple harmonic motion between x = - A to x = + A. The time taken for it to go from 0 to \({A \over 2}\) is T1 and to go from \({A \over 2}\) to A is T2. Then

A quantity X is given by \({\varepsilon _0}L{{\Delta V} \over {\Delta t}}\) where \({\varepsilon _0}\) is the permittivity of the free space, L is a length, \({\Delta V}\) is a potential difference and \({\Delta t}\) is a time interval. The...