The sound waves give rise to the phenomena of beats due to their:
Correct answer: C. Interference
- A. Reflection
- B. Refraction
- C. Interference
- D. Polarization
Explanation
The correct answer is Interference. Beats are produced when two sound waves of slightly different frequencies interfere with each other. This interference leads to a periodic variation in the amplitude of the resultant sound wave, perceived as beats.Reflection and Refraction do not contribute to the formation of beats, as they involve the change in direction of waves rather than their superposition. Polarization is not applicable to sound waves, which are longitudinal, and thus does not relate to the creation of beats.
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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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