To observe diffraction,the size of an obstacl | vedclass

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(A) The correct option is $A$.Diffraction is the phenomenon of bending of light around the corners of an obstacle or an aperture.For significant diffr

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Should be of the same order as the wavelength

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(A) The correct option is $A$.Diffraction is the phenomenon of bending of light around the corners of an obstacle or an aperture.For significant diffraction to occur,the size of the obstacle or the width of the aperture must be comparable to the wavelength $(\lambda)$ of the incident light.If the obstacle is much larger than the wavelength,the light travels in a straight line,and diffraction is negligible.Therefore,the size of the obstacle should be of the same order as the wavelength of the light used.

To observe diffraction,the size of an obstacle:

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