A simple pendulum, 0.6m long, has a period of 1.5s. What is the period of a similar pendulum of 0.4m length in the same location?

A force varying linearly with the distance acts on a body as shown above, The work done on the body by the force during the first 10m of motion is

A short bar magnet is placed in earth's magnetic field, as shown above, which of the points II and III are/is possible positions of a neutral point?

In the circuit Shown above, calculate the effective capacitance between X and Y