* Disadvantages of Wide SlitChoose ALL correct answers. Disadvantages to making the spectroscope slit wider are thatSelect one or more:a.faint emission lines disappear.b.closely spaced spectral lines merge into one another.c.it is harder to determine a precise wavelength for a spectral line.d.absorption lines disappear.

Choose ALL correct answers. The advantages to making the spectroscope slit wider are thatSelect one or more:a.faint emission lines become more visible.b.emission spectra turn into continuous spectra.c.it is easier to determine a more precise value of the wavelength.d.closely spaced spectral lines are better resolved.

3.In a Young's double slit experiment, the path difference, at a certainpoint on the screen. between two interfering waves is 1/8th ofwavelength. The ratio of the intensity at this point to that at the centreof a bright fringe is close to

In a Young’s double slit experiment, the path difference at a certainpoint on the screen between two interfering waves is 𝟏𝟖th of thewavelength. The ratio of intensity at this point to that at the centreof a bright fringe is close to

A researcher uses a single slit diffraction pattern to evaluate a patient's vision.  Which of the following changes will decrease the spacing of the diffraction pattern?A.Decreasing the width of the slitB.Decreasing the wavelength of the lightC.Increasing the wavelength of the lightD.Increasing the intensity of the lightSubmit

When conducting an interference experiment with monochromatic light ofwavelength 6000 angstroms, it is known that the two slits are 0.5 millimetersapart, and the distance between the slit and the screen is 2 meters. Then, onthe screen where the interference fringes are formed, (1) what is the width ofthe first bright fringe? (2) How far is the third dark line from the central axis? (3)If monochromatic light with a wavelength of 4000 angstroms is used instead,how far is the centerline of the third bright fringe from the central axis?