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5/13 MCQs for:
WAVES: Sound

Which of the following waves CANNOT be polarised?

What determines "loudness" of a musical note?

An open pipe of length L is resonating at its fundamental frequency. Which statement is correct?

A small vibrating object on the surface of a ripple tank produces waves of frequency 20 Hz and speed 60 cm/s. If the source S is moving to the right as shown the figure, with a speed of 20 cm/s.

What frequency would an observer at point C hear?

The fundamental note produced by a closed pipe in a piano is 128 Hz.

What is the wavelength of its first overtone?