To observe diffraction, the size of an obstacle :

Question

To observe diffraction, the size of an obstacle : (A) should be of the same order as wavelength (B) should be much larger than the wavelength (C) have no relation with wavelength (D) should be exactly

Tardigrade Admin · Accepted Answer

Diffraction refers to various phenomenon associated with wave propagation, such as bending spreading and interference of waves emerging from an aperture. It occurs with any type of wave, including sound waves, water waves etc. While diffraction always occurs, its effects are generally only noticeable for waves where the wavelength is on the order of the feature size of the diffracting objects or apertures.

Q. To observe diffraction, the size of an obstacle :

should be of the same order as wavelength

should be much larger than the wavelength

have no relation with wavelength

should be exactly