(i) State whether the specific heat capacity of a substance remains the same when it's state changes from solid to liquid.

(ii) Give one example to support your answer.

(i) Define resonant vibrations.

(ii) Which characteristic of sound, makes it possible to recognize a person by his voice without seeing him ?

A magnet kept at the centre of two coils A and B is moved to and fro as shown in the diagram. The two galvanometers show deflection.

State with a reason whether :

x > y

or

x < y [x and y are magnitudes of deflection]