Diffraction of light is observed only, when the obstacle size is-

The phenomenon of diffraction can be observed, when the obstacle is

To observe diffraction, the size of the obstacle

To observe diffraction, the size of the obstacle

To observe diffraction, the size of the obstacle

Assertion: To observe diffraction of light the size of obstacle/aperture should be of the order of 10^-7m . Reason: 10^-7m is the order of wavelength of visible light.

Assertion: To observe diffraction of light the size of obstacle/aperture should be of the order of 10^-7m . Reason: 10^-7m is the order of wavelength of visible light.

Statement I : To observe diffraction of light, the size of obstacle or aperture should be of the order of 10^(-7) m. Statement II : 10^(-7) m is the order of wavelength of visible light.

When a monochromatic light is passed around a file wire a diffraction pattern is observed. How the fringe width will change by increasing the diameter?