Sound and Waves — Mains Questions

Discuss the principles of wave interference and resonance, and explain their applications in noise control and musical instruments. (15 marks, 250 words)

Elaborate on the Doppler effect, its mathematical formulation, and its diverse applications in science and technology, including a note on supersonic phenomena. (15 marks, 250 words)

Analyse the role of ultrasonic waves in modern medical diagnostics and industrial non-destructive testing (NDT). What are their advantages and limitations? (10 marks, 150 words)