(a) Derive the relation asintheta=lamda for the first minimum of the diffraction pattern produced due to a single-slit of width 'a' using light of wavelength lamda. (b) State with reason, how the linear width of central maximum will be affected if (i) monochromatic yellow light is replaced with red light, and (ii) distance between the slit and the screen is increased. (c) using the monochromatic light of same wavelength in the experimental set-up of the diffraction pattern as well as in the interference pattern where the slit separation is 1mm, 10 interference fringes are found to be within the central maximum of the diffraction pattern. determine the width of the single-slit, if the screen is keptat the same distance from the slit in the two cases.

(a) Derive the relation asintheta=lamda for the first minimum of the d

1.	(a) Derive the relation asintheta=lamda for the first minimum of the diffraction pattern produced due to a single-slit of width 'a' using light of wavelength lamda. (b) State with reason, how the linear width of central maximum will be affected if (i) monochromatic yellow light is replaced with red light, and (ii) distance between the slit and the screen is increased. (c) using the monochromatic light of same wavelength in the experimental set-up of the diffraction pattern as well as in the interference pattern where the slit separation is 1mm, 10 interference fringes are found to be within the central maximum of the diffraction pattern. determine the width of the single-slit, if the screen is keptat the same distance from the slit in the two cases.
Answer» ANSWER :0.2mm

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