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Question

# Angular width (θ) of the central maximum, in a diffraction pattern of a single slit does not depend upon,

A
distance between slit and source
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B
wavelength of light used
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C
width of the slit
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D
All of the above
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Solution

## The correct option is A distance between slit and sourceIn a single slit diffraction pattern, the angular width of central maximum is, y=2β=2λa Where, λ - Wavelength of light used (λ=cf) f→ frequency of light used a→ Width of the slit From the above equations, it is clear that the angular width is independent of distance between slit and source. Hence, (A) is the correct answer.

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