Question 1 A laser, with a wavelength of 462 nm, was shone at two narrow slits creating a double slit pattern on a wall 165 cm behind the slits. The pattern has a fringe spacing of 2.50 mm. What is the spacing between the two slits? O 0.000185 m O 0.000112 m 0.000305 m O 7.00x10-10 m Question 2 Mirror Wall -Laser beam At what angle does the laser beam need to be at to hit the mirror then hit the midpoint of the wall? The height of the room is h = 2.10m and the width of the room is w = 5.50 m. O 1.21 rad O 0.520 rad O 1.32 rad O 0.365 rad Question 3 An object is 21.0 cm from a concave mirror and the object is 1.50 cm tall. What is the position and height of the image if the focal length of the mirror is 59.0 cm? The object is at -32.6 cm and the height of the image will be 0.00219 cm inverted. The object is at -0.0307 cm and the height of the image will be 2.33 cm inverted. The object is at -0.0307 cm and the height of the image will be 0.00219 cm upright. The object is at -32.6 cm and the height of the image will be 2.33 cm upright