question_answer

Diffraction is common in sound but not common in light waves? Why? Or Why do we not encounter diffraction effects of light in everyday observations?                              

Answer:

                Diffraction effect is more pronounced if the size of obstacle or aperture is of the order of the wavelength of the waves. As the wavelength of light\[(\tilde{\ }{{10}^{-6}}m)\] is much smaller than the size of the objects around us, so diffraction of light is not easily seen. But sound waves have large wavelength. They get easily diffracted by the objects around us.