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Minima in Diffraction

in a single s...

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in a single slit diffraction pattern red light of wavelength= 650nm is used and first minimum is found to lie at angle 15 the slit width 'a' is

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Q. In a single slit diffraction experiment, a slit of width is illuminated by the Red light of wavelength

650 n m

. For what value of

a

will the first minimum fall at an angle of diffraction of

30^{o}

Q. In the diffraction pattern due to a single slit of width 'd' with incident light of wavelength

^{'} λ^{'}

, at an angle of diffraction

^{'} θ^{'}

, the condition for first minimum is

Q. In a single slit diffraction experiment, first minimum for red light

(660 nm)

coincides with first maximum of some other light of wavelength

λ

λ

nm

Q. In a diffraction pattern due to a single slit of width

^{'} a^{'}

, the first minimum is observed at an angle

30^{o}

when light of wavelength

5000 ˚ A

is incident on the slit. The first secondary maximum is observed at an angle of :

Q. Visible light of wavelength

550 nm

falls on a single slit and produced its second diffraction minimum at an angle of

45^{\circ}

relative to the incident direction of the light. What is the width of the slit

(in μ m)

?

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