(A) Diffraction is the bending of light around the corners of an obstacle or aperture. For significant diffraction to occur,the size of the aperture $

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of the order of the wavelength.

(A) Diffraction is the bending of light around the corners of an obstacle or aperture. For significant diffraction to occur,the size of the aperture $(a)$ must be comparable to the wavelength $(\lambda)$ of the incident light. Mathematically,this condition is expressed as $\frac{a}{\lambda} \approx 1$ or $a \approx \lambda$.

Class 12 Physics Wave Optics Single Slit Diffraction of Light

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For diffraction to occur,the dimension of the aperture must be . . . . . .

A
of the order of the wavelength.
B
much larger than the order of the wavelength.
C
independent of the wavelength.
D
equal to $\lambda/2$.

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Wave Optics

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Single Slit Diffraction of Light

Light of wavelength $5000 \, \mathring{A}$ is incident on a single slit such that the angular position of the first minima is $30^\circ$. The width of the slit is:

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In the experiment of diffraction at a single slit,if the slit width is decreased,the width of the central maximum

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Light of wavelength $600 \,nm$ is incident normally on a slit of width $0.2 \,mm$. The angular width of the central maxima in the diffraction pattern is (measured from minimum to minimum):

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Radio waves diffract around buildings,although light waves do not. The reason is that radio waves

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Which of the following colourful patterns is due to the diffraction of light?

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For diffraction to occur,the dimension of the aperture must be . . . . . .

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Light of wavelength $5000 \, \mathring{A}$ is incident on a single slit such that the angular position of the first minima is $30^\circ$. The width of the slit is:

In the experiment of diffraction at a single slit,if the slit width is decreased,the width of the central maximum

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