Could i please get some help with this, it would mean a lot, thank you !!

Question 1 A B " I) l". The gure provided displays the viewing screen in a doubleslit experiment. Noting that fringe Cis the central maximum, what will happen to the fringe spacing if the spacing between the slits is decreased? O The fringe spacing will remain constant. f\\ LJ The fringe spacing will increase. f\\. e) The fringe spacing will decrease. Question 2 A Michelson interferometer is set up to display constructive interference using light of wavelength A, as shown in the figure provided. Which of the following is true if the wavelength is changed to 1/2? O The fringes disappear. O The central spot remains bright. O The central spot becomes dark.Question 3 Screen Lens Image Object In the figure provided, a lens produces a sharply focused, inverted image on a screen. Which of the following is true if the lens is removed? The image will be inverted and blurry. O The image will be upright and blurry. The image will be much dimmer but otherwise unchanged. O There will be no image at all. The image will be upright and sharp. Question 4 The figure provided shows an object near a lens where the focal points are marked. Which of the following best describes the image produced? O Upright and virtual. O Inverted and virtual. O Inverted and real. O Upright and real.5. (Knight Problem 33.25) A 0.50-mm-diameter hole is illumi- nated by light of wavelength 550 nm. What is the width (in mm) of the central maximum on a screen 2.0 m behind the slit? [Answer: 5.4 mm.] 6. (Knight Problem 33.31) Moving mirror M2 of a Michelson interferometer a distance of 100 um causes 500 bright-dark- bright fringe shifts. What is the wavelength of the light? [Answer: 400 nm.] 7. (Knight Problem 34.5) A light ray leaves point A in FIG- URE EX34.5, reflects from the mirror, and reaches point B. How far below the top edge does the ray strike the mirror? [Answer: 9.0 cm.] 5 cm 10 cm A 15 cm Mirror B FIGURE EX34.5 15 cm 8. (Knight Problem 34.9) It is 165 cm from your eyes to your toes. You're standing 200 cm in front of a tall mirror. How far is it from your eyes to the image of your toes? [Answer: 433 cm