Which of the following will undergo maximum diffraction ? (A) \(\alpha-\) particle (B) \(\gamma\) -rays (C) radio waves (D) light waves

The options we are given are: (A) \(\alpha-\) particle (B) \(\gamma\) -rays (C) radio waves (D) light waves We should find the wavelengths associated with each type of wave since the degree of diffraction depends on the wavelength: - \(\alpha-\) particles: These are charged particles (helium nuclei) and can be considered as matter waves. Their wavelength depends on their energy, but they typically have very short wavelengths (less than 1 nm). - \(\gamma\) -rays: These are high-energy electromagnetic waves with very short wavelengths (less than 0.01 nm). - Radio waves: These are low-energy electromagnetic waves with long wavelengths (1 mm to 100 km). - Light waves: Visible light waves have wavelengths between 400 and 700 nm.

Now, we should compare the wavelengths of the given options and determine which one has the longest wavelength. Longer wavelengths will undergo maximum diffraction. - The wavelength of \(\alpha-\) particles is less than 1 nm. - The wavelength of \(\gamma\) -rays is less than 0.01 nm. - The wavelength of radio waves ranges from 1 mm to 100 km. - The wavelength of light waves ranges from 400 to 700 nm.

Comparing the given options, radio waves have the longest wavelengths (1 mm to 100 km), which makes them the most likely to experience maximum diffraction. Therefore, our answer is: (C) radio waves