Study the role of the shape of a Veena in utilizing forced vibration and prepare a short note.

In the veena, the string is attached to the sound box of the veena, the vibrating string is capable of forcing the sound box into vibrating at that same natural frequency. The sound box in turn forces air particles inside the box into vibrational motion at the same natural frequency as the string. The entire system (string, veena, and enclosed air) begins vibrating and forces surrounding air particles into vibrational motion.

Hence the tendency of one object to force another adjoining or interconnected object into vibration motion is referred to as a forced vibration.

In the case of the veena, string is mounted to the sound box, the fact that the surface area of the sound box is greater than the surface area of the string means that more surrounding air particles will be forced into vibration. This causes an increase in the amplitude and thus loudness of the sound.